Are you thinking about buying a new pair of running shoes that aren’t too expensive, but still have a good grip and provide you enough support?
You might be also thinking about which type of sole material is best for your running shoes? You may have looked over the different types of sole materials available, but are still confused about which one is right for you? Which one can you trust?
In this guide, I will help you find which sole material is best for running shoes. I’ll also tell you the benefits of different kinds of sole materials and show you how each sole material differs from each others.
Let’s get started.
Which Sole Material Is Best For Running Shoes?
PU soles are the best shoe sole material for today’s runners. PU sole is water-resistant, breathable, and durable. It provides maximum cushion and traction as well as being able to withstand multiple surfaces from concrete, to dirt roads, to grass.
In addition to PU soles, there are other options available for runners looking for added traction and durability with EVA combined with PU soles providing shoes with maximum cushioning and excellent traction on multiple surfaces!
Why Sole Material Is So Important?
The sole of your sneaker is the bottom surface of your running shoes. It is arguably the most important part of your shoe because without a proper sole there’s no way you’ll be able to properly run.
It is what connects you and the ground and it provides the foundation for the rest of the shoe to be built on. It is also the part of the shoe that is most exposed to the elements, which means that it is impacted by everything that you run on.
The sole is the foundation of your running shoe so it needs to be both flexible enough to allow you to move with ease and also supportive enough to provide the stability that you need.
There are many combinations of sole materials that can be used to achieve these goals. It is important to know all the options before deciding on the best combination for you.
Anatomy of a Sole of Running Shoes
Soles are made up of three main components, the inner sole, midsole, and outer sole or outsole.
Insole
The insole is the top layer of the sole structure in running shoes. It acts as the mattress for your feet to rest upon while you run. The inner sole is made up of soft microfibers that are usually attached to the upper part of the midsole and are removable if damaged.
They are meant to protect your feet by absorbing shock when you run on hard surfaces. They are also meant to be comfortable and provide cushioning.
This is one of the most important components in any running shoe because it keeps your foot comfortable while running and protects it from abrasions, cuts, and blisters.
Midsole
The midsole is the part of the sole containing the majority of the cushioning. The midsole is made up of foam that is meant to be soft and pliable. It contains a lot of soft foam cushioning, which acts as both shock absorption and cushioning.
It absorbs impact from your running stride and provides you with the right amount of cushioning for different kinds of surfaces you run on. Some midsole materials are shock-absorbing while others even work at lowering the temperature in your shoes.
The midsole could be made up of different materials depending on its intended purpose like EVA foam for comfort or EVA rubber for traction and flexibility.
Outsole
The outsole is the bottom of your running shoe. The outsole acts as a shield between your feet and the road.
It provides support and traction and can be made up of different materials like TPU, rubber, PU, or other hard materials.
Some outsole materials are meant to be used on different types of surfaces. For example, TPU is used on slippery surfaces like ice and water while PU is better for hard surfaces like dirt tracks or trails.
Types Of Sole Material
The running shoe’s sole plays a very important role when it comes to running. There are basically six different types of sole material, and each of these materials has its own unique attributes. We will explore the different sole materials and how each one is different from the other.
Rubber Soles
Rubber sole materials are very sturdy. Some rubber-soled shoes will typically be heavier because they’re designed to withstand a lot of use and not wear down easily at all. They’re composed of long-lasting, impact-resistant rubber compounds with high tensile strength for maximum durability. Rubber soles are made up of a couple of different rubbers:
Natural Rubber
Natural rubber is extracted directly from rubber trees. It is a soft material that has good durability for impact resistance.
Synthetic Rubber
Synthetic rubber is a man-made product that is based on the same chemical structure as natural rubber. It has been modified to be more flexible with better resistance, heat, and cold tolerance.
Features and Benefits of Rubber Soles
Durable and Flexible: Rubber sole materials are good for different kinds of surfaces because they’re very durable and have a wide range of flexibility with a high tensile strength which allows them to keep their shape even during extreme conditions.
Traction: They have a medium amount of cushioning but most importantly they provide great traction and support for your arches when you run.
Affordable: The rubber-soled shoes are affordable because they are made of rubber, which is cheaper than leather. The high supply of shoes with rubber soles has contributed to their low price.
Various Varieties: Rubber soles come in a variety of colors. Also, they can be easily cleaned and maintained.
EVA stands for ethylene-vinyl acetate. It is a material that has been used in running shoe construction for a variety of applications including outer soles, midsoles, and insoles.
EVA sole is one of the most reliable options available for running shoes because it’s got a very good combination of durability, flexibility, and cushioning at an affordable price.
Features and Benefits of EVA Soles
Comfortable: EVA soles are soft and cushiony. This makes them very comfortable for runners with different kinds of foot types.
Very Lightweight: EVA midsole provides lightweight cushioning that reduces the impact on the sole of your feet while running on different types of surfaces.
Cost-effective: The EVA soles are very cost-effective compared to the other sole options because they’re made of plastic, which is much cheaper than leather, or other materials.
Durable: EVA sole might not be as durable as rubber soles but still, it can withstand several breakages with its high tensile strength, which makes it the perfect material in the construction of a running shoe.
Versatile: They can be used in different parts of the shoe to provide support and cushioning where necessary. For example, they can be used as outsoles or midsoles. They are also an excellent option for insoles because they are soft enough to take the form of your feet while retaining their shape during use.
PU Soles (Polyurethane Soles)
What is PU Sole?
Polyurethane is a polymer that is used in the construction of running shoes. It is also suitable for use in midsoles because it gives the shoe both flexibility and cushioning.
Some polyurethane soles are made with different densities or thicknesses which have different impacts on the comfort, support, weight, and durability of the shoes.
Features and Benefits of PU Soles
Shock Absorption: PU is a shock-absorbing material. Its softness and malleability help in absorbing the shock and increasing the cushioning of the shoes.
Resistant To Heat And Cold: With the help of the insulation properties, polyurethane also allows the runner to run comfortably in different weather conditions.
Lightweight: The lightness of the polyurethane is one of its biggest strengths because it aids the runner during his/her training activities.
Flexible: No matter how thick or thin any polyurethane sole may be, it will always have flexibility on some level which is an important factor for comfort.
Eco-friendly: Polyurethane is a material that is derived from the recycling of plastic waste, which makes it eco-friendly.
Leather Soles
Leather is a natural material that is processed from animal hides. The leather sole is an excellent shoe sole because of its flexibility, durability, and traction.
Most of the leather-soled running shoes are not waterproof though so you should take extra care when wearing them in rainy conditions since water could easily seep into the material.
Leather soles are commonly used on formal shoes, running isn’t something that can be done in those shoes that have leather soles.
Features and Benefits of Leather Soles
Breathability: Leather shoes provide great breathability because of their natural origin. This allows them to stay comfortable even in hot and humid conditions.
Lightweight: A shoe with a leather sole is lighter and provides extra comfort and support that you wouldn’t get with other materials.
Eco-friendly: Unlike other materials, leather is biodegradable. It decomposes when left in the environment which makes it eco-friendly.
Very durable: The shoes with leather soles are resistant to breaking because they’re made of very hard material.
Odorless: Leather doesn’t make your feet sweat because of its breathability which makes it odor-free.
PVC Soles (Polyvinyl Chloride Soles)
Polyvinyl chloride is a type of plastic, so it’s used in many different things. It’s found in raincoats, car windows, and most importantly shoes.
PVC offers shock-absorbing properties which makes it a great option for animal-friendly alternatives of leather. Because of this, it makes the most cost-effective material out of all synthetic options of comfort and cushioning due to its ability to be molded however you want.
PVC, or polyvinyl chloride, can be great for daily wear and tear but not so great if you want to run or exercise because it doesn’t provide enough comfort that runners prefer while they are running or exercising.
TPR Soles (Thermoplastic Rubber Soles)
The TPR material provides great shock absorption and is quite breathable. This makes the shoe a pleasure to wear during any outdoor activity since it keeps your feet cool and dry at all times.
Another interesting point about these TPR soles is that they are affordable and resistant to low temperatures.
TPR soles are not as popular as other soles. TPR isn’t usually recommended for running because it’s not as comfortable and supportive as some other kinds of sole shoes out on the market.
The EVA sole is the best option for daily use because it’s very inexpensive and it can provide you with the same amount of comfort that you would get with other sole options.
EVA soles are also very suitable for high-impact activities like running because they’re shock absorbing and comfortable.
Which sole material is the most popular?
The EVA sole is the most popular because it’s inexpensive and it works well for running or other activities that require comfort and protection.
The best part about the EVA sole is that there are different densities of these soles if you want them to be more resilient towards impact.
You can also choose one with a higher or lower density for your training shoes, depending on how much cushioning you prefer in your shoe.
How long do PU soles last?
PU sole lasts very long because it’s very durable and strong. You can use the same pair of shoes for more than 2 years if you take care of them correctly.
Is rubber sole durable?
Yes, rubber soles are more durable than other shoe soles. A rubber sole is hard to beat in a running shoe. Shoes with a rubber sole have been around for over a decade and runners love them because they can last for a very long time without any major issues.
Which sole is better PVC or EVA?
EVA is one of the best soles, but if you need something just for casual use, PVC and leather soles are better options. However, most runners use EVA and PU soles because they’re comfortable and cost-effective.
Are flat-soled shoes good for running?
Although flat-soled shoes aren’t ideal for running because they don’t offer much support, they are very popular among runners because they are cheap and comfortable for short distances.
If you are looking for cheap shoes for short distances, you can choose flat-soled shoes. However, if you want to run longer distances or run with heavy weights, you should go with a good pair of shoes such as EVA or PU sole.
Conclusion
Any runner would love to have shoes that provide great support, cushioning, and durability while also providing them with adequate comfort throughout the day.
Picking the right sole material is important because you don’t want to end up with a pair of shoes that will hinder your running performance.
While there are many alternatives for sole you can choose from, EVA and PU soles are considered to be the most popular and durable materials for running shoes among runners.
Thanks for reading our guide on sole materials, I hope that it will help you make the right decision when choosing the best shoe for your running needs.
If you have any more questions on this topic then let us know in the comments below.
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By Neha Saxena
I'm a writer and researcher for Shoes Suggester. A few years back I was overweight but now I’ve got my weight under control with the help of running! In the process, I’ve tried on countless pairs of shoes from walking shoes and running shoes to flip flops and even boots! It's been a great journey so far.
PU :: Polyurethane soles are lightweight, resilient, flexible, and have good ground insulation and shock-absorbing properties. These soles have the best durability performance. RUBBER :: Rubber has excellent ground traction and is a non-marking, long-lasting material that enhances the shoe durability and longevity.
PU :: Polyurethane soles are lightweight, resilient, flexible, and have good ground insulation and shock-absorbing properties. These soles have the best durability performance. RUBBER :: Rubber has excellent ground traction and is a non-marking, long-lasting material that enhances the shoe durability and longevity.
A rubber sole is more comfortable compared to plastic. It is pliable and provides a better grip than plastic and leather soles when exposed to wet and oily surfaces.
Compared to all the other types of soles, leather soles are long-lasting and heavy-duty. They can withstand harsh conditions as long as they are properly maintained. Another advantage is that they are breathable. Therefore, your feet don't sweat when you are wearing leather shoes.
With non-slip shoes, you want a sturdy EVA (ethylene vinyl acetate) rubber outsole that's slightly rounded on the sides. EVA rubber is a synthetic, foam-like resin used in the outsoles and midsoles of many shoes.
Medical Grade EVA Foam Base: The orthotic insoles are made of the high-quality medical-grade EVA foam base and high arch support that helps to provide relief from heel pain, heel spurs, Achilles Tendonitis, and Ball of Foot Pain. It helps to make you feel comfortable all day long while walking or standing for hours.
Well-fitting shoes made of leather, which allow your feet to breathe, are best. Athletic shoes using nylon mesh for breathability are also recommended for sweaty feet.
Try on shoes with midsoles made of gel, foam, or air. All of these materials do a great job of cushioning and minimizing impact each time your foot hits the ground while you walk. Ensure good shock absorption with quality insoles. The soles of your feet should feel well-cushioned in your walking shoes.
Nike midsoles are made with closed-cell EVA foam, closed-cell PU foam, and closed-cell Pe-Bax foam. Some outsole bottoms of lightweight Nike shoes are made from closed-cell “blown” rubber foam. Nike sneaker footbeds are made from closed-cell EVA foam and “crystalized” PU foam.
It's not great for the environment and the price of synthetic rubber is strongly correlated with oil prices. It's not exactly the same – Natural rubber is best at what it does and that's difficult to replicate perfectly.
Rubber soles are slip-resistant, offering better grip on treacherous surfaces. They also have the advantage of being oil- and water-resistant. This allows you to work safely in wet, muddy, and slippery environments – without having to worry about bringing along a change of socks.
Among the various materials used to make shoes, leather is certainly the most durable. In addition to being sturdy, it is also durable and waterproof. Leather shoes are also quite easy to maintain.
Leather is the winner here. For any kind of shoe, your best bet will be a long-lasting, good quality leather. It's also known for flexing and molding to the feet – and having the ability to hold that shape for years to come.
In general, the rougher the sole, the more it is for off-road conditions (the sole is to give you grip). If you were to wear off-road trainers on pavement/concrete/tarmac most of the time, then the sole would wear out quite quickly.
Plastic and leather soled shoes tend to be the worst for walking on slippery paths. Look for some boots that have a large tread, and soles with deep lugs and patterned for extra grip on slippery surfaces.
Some soft soles dont make any sound. They could be EVA soles. They are very light but offer no traction. Most sports shoes have EVA soles with rubber or rubber insert outsoles..
Just take your shoes and rub the smooth parts of the sole with sandpaper, especially those parts that often come in contact with the ground. It will make your sole rough, therefore non-slippery.
New Balance shoes are often cited as great for people suffering from foot pain. The Fresh Foam 1080V9 Running Shoes for men and women are stylish and comfortable with their mesh uppers. They have a wide toe box that helps to stabilize your feet and their ample cushioning helps with shock absorption.
Shoes which often make plantar fasciitis worse are flat slip on shoes or pumps. Ugg boots are also very bad. Flip flops are bad yet remain a popular choice of footwear for many people, particularly those that live in warmer climate.
Speaking of blisters, chafing, and painful rubbing, you might try sticking pieces of moleskin inside your shoes in problem areas. Moleskin is a thin yet robust fabric. You can buy it online and at most drugstores, but if you're in a pinch, cloth bandaids can also work.
We recommend leather, suede or natural canvas. Generally speaking, the thinner the shoe material, the cooler your feet. Very fine leathers and suedes are often a good summer choice as they will help to prevent your feet getting too hot.
Based on our research, tester experience, and expert insights, we found that polyester, nylon, and wool socks are most effective at keeping sweaty feet dry, cool, and comfortable. These materials are moisture-wicking, so they move sweat to the outer surface of the socks.
Rubber is probably the best material for sole. It is way more comfortable than a leather sole. It has more traction than a synthetic sole. It has less wear and tear compared to a PU sole.
Insoles are typically sized by a range of shoe sizes (for example, Men's 9-11). For most insoles this is because they are designed to be trimmed down to fit your shoe perfectly. If you know your foot measurements then pick the insole that corresponds with your foot size.
Insoles should be firm enough so that when you press down on the arch, it doesn't collapse. If there's too much give, the insert won't give you the support you need. Insoles work best when they match the contours of your feet. Insoles that are too high can hurt.
The shoe sole, found on the bottom of an athletic shoe, is where the foot meets the ground. It is usually made of carbon rubber, blown rubber or a combination of both. Carbon rubber is stiffer, lasts longer, and may be used in the high-wear areas of the sole, with the softer blown rubber in other areas.
Nike Air Max is a line of shoes produced by Nike, Inc., with the first model released in 1987. Air Max shoes are identified by their midsoles incorporating flexible urethane pouches filled with pressurized gas, visible from the exterior of the shoe and intended to provide cushioning to the underfoot.
Natural rubber soles are great walking shoes as they are very flexible, shock-absorbent, and offer grip on slippery surfaces. Rubber soles have great water resisting properties.
Rubber is nonporous, so rubber footwear doesn't allow your skin to breathe and it traps heat, keeping the feet very warm. There are 250,000 sweat glands on your feet so you need to wear breathable footwear. If you don't the sweat will not dry leading to fungus growth on your toes and clogged sweat glands.
Does a rubber sole always make a shoe slip-resistant? No. All slip-resistant shoes have rubber soles, but not all rubber soles are slip-resistant. The best outsoles for a slip-resistant shoe are made with soft rubber that can go against oil and grease and must be treaded.
The different types of synthetic rubber include neoprene, Buna rubbers, and butyl rubbers, and they are usually developed with specific properties for specialist applications. Styrene-butadiene rubber and butadiene rubber (both Buna rubbers) are commonly used for tire manufacture.
The main difference between natural rubber and synthetic rubber is that natural rubber is a natural biosynthesis polymer obtained from a plant called Hevea brasiliensis, whereas synthetic rubbers are man-made polymers under controlled conditions.
Now, between the two, natural rubber's tensile strength is higher than synthetic rubber, boasts higher tear resistance, and has a less potent odor than synthetic rubber. Natural rubber also resists chipping, cutting, and tearing better than its artificial counterpart.
They have long-term mechanical properties. Additionally, they are durable, slip-resistant, have shock absorption properties, and are water-resistant. They are also low density and affordable. These soles are ideal for walking shoes, jogging shoes, and safety shoes.
Depending on how often you wear your shoes with rubber soles and how well you care for them it's quite normal for them to last 5 or more years. Rubber is also water resistant so you don't have to worry about getting your feet wet. Cracks are the biggest issue for rubber soles.
Why do shoes have white soles? Shoes have white soles because it is cheaper to manufacturer the white color rather than adding in different colors. The rubber is made from a softer material, lower in density, contains more air, therefore weighs less, and costs less.
Suede is notoriously difficult to clean. If you notice water marks, scuff marks, dirt or stains, it's probably time to give your suede shoes a proper cleaning.
Vibram's® unique compound blends foam and rubber to create an outsole that has the best traits of both materials — the softness and springiness of foam, and the durability and traction of rubber.
Many of us wear shoes past their “expiration” date simply because we don't know what to look for! As a general rule of thumb, shoes should be replaced every 8-12 months for most people or every 500-700 kilometres for running shoes. Some shoes will last longer, and some will wear out more quickly.
On average, shoes can last from two to seven years depending on the quality and the way they are cared for. Many people wonder how long their sneakers or flats will last. If you are actively using these shoes, you'll have to invest in a new pair faster than a pair that's worn for fashion.
A rubber sole is more comfortable compared to plastic. It is pliable and provides a better grip than plastic and leather soles when exposed to wet and oily surfaces.
PU :: Polyurethane soles are lightweight, resilient, flexible, and have good ground insulation and shock-absorbing properties. These soles have the best durability performance.
For slip resistant safety shoes, you should look out for a sturdy EVA (ethylene vinyl acetate) rubber outsole that's slightly rounded on the sides. EVA rubber is a a synthetic, foam-like resin used in the outsoles and midsoles of many shoes.
TPR is primarily used for applications in which flexibility, toughness, and grip are important. One of the main uses for TPR is shoe soles. PVC (polyvinyl chloride) is an engineering thermoplastic with excellent corrosion resistance; PVC can be flexible (plasticized PVC) or rigid (unplasticized PVC).
Most running shoes are constructed with breathable knit Polyester or Nylon mesh. Knit fabric allow the material to smoothly follow the last curves. Running shoe uppers often with PU leather reinforcements. Pu or synthetic leathers are great for running shoes as they have some stretch and are damaged by water.
Canvas. Canvas shoes are one of the most beloved styles of footwear around the world. ...
Cotton. Cotton is a common material used in making all kinds of footwear, especially cotton canvas shoes, cotton tennis shoes, cotton slip-on shoes, and cotton boat shoes. ...
Boost is a trademarked polymer used by Adidas, in the form of pellets which are compressed and molded for various shoe models the company sells, especially the Ultraboost, Energy Boost and NMD lines of sneakers. The pellets consist of proprietary thermoplastic urethane (TPU) that is formed into a small pill shape.
Leather is commonly used as an outsole. In footwear, PVC is often found in outsoles as well as synthetic leathers and coated fabrics for a shoe's upper.
The composition of E-TPU is entirely separate from EVA, allowing an increase in response with an increase in cushion. As a result, E-TPU offers longer durability and more comfort then traditional EVA based footwear.
Brooks' Glycerin midsole is made with what most athletic shoes use—ethylene-vinyl acetate (EVA), a man-made material that is considered foam, known for its low density and lightness that's been favored by the industry for 40 years.
Nylon - Nylon is one of the most popular fabrics in running wear as it's sweat-wicking, breathable, and super stretchy so it'll move with you for a comfortable ride. Polyester- Polyester is a plastic based fabric making it durable, lightweight, breathable, and non-absorbent.
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