Nearly 30% of global footwear soles use rubber in shoes. Infact, most casual footwear brands are switching to thermoplastic rubber soles. This can be credited to their unique blend of comfort, durability, and safety. Yet many shoppers remain unclear about what exactly makes this material special.
So, in this blog post, we will first understand what is TPR sole in shoes, its features and its benefits. Then, we will compare it with other materials like PVC and EVA so you can see where it truly stands out.
By the end, you’ll have a clearer idea of TPR material for shoes and when it might be the right choice for your footwear needs.
What Is TPR Sole In Shoes
TPR full form in shoes is thermoplastic rubber. It is a versatile material commonly used for shoe soles. TPR is made from a thermoplastic elastomer, which means it behaves like rubber while being able to be molded and shaped like plastic. Hence, this blend of rubber and plastic allows TPR to be flexible yet durable.
One of the main reasons TPR soles are popular in footwear is their excellent traction. The material provides a good grip on different surfaces, making it safer to walk in, whether on wet pavement or smooth floors. TPR is also lightweight, which adds to the comfort of shoes, especially for casual or everyday wear.
However, TPR soles are not just for casual shoes; they are also found in workplace footwear. Many professionals prefer TPR-soled shoes because they provide the comfort needed for long shifts without sacrificing safety. Their slip-resistant nature helps reduce the risk of falls in environments like kitchens or hospitals, where safety is paramount.
Some of the standout advantages of TPR soles include:
- Softness
- Durability and Comfort
- Vertalise Designing Options
- Lightweight feel
- Eco-friendly recycling
- Shock-absorption
Is TPR Rubber Or Plastic?
TPR has characteristics of both synthetic polymers – rubber and plastic. This combination gives TPR rubber-like elasticity with plastic toughness. The soles have a springy feel that absorbs impact well while retaining a sturdy structure that withstands frequent use.
The blend also provides grip and flexibility similar to rubber, making them easy to walk in. Meanwhile, the plastic properties add extra resistance against wear and environmental elements.
How Strong Is TPR Material
TPR is recognized for its resilience and toughness, which make it a preferred choice in various types of footwear. Lets understand what makes TPR such a strong material and why it’s so well-suited for shoes:
- Composition and Durability
The strength of TPR comes from its synthetic blend, designed to endure everyday stress and strain without easily breaking down. The soles can handle both constant movement and rough surfaces without wearing out. The formulation can thus resist cracking and tearing.
- Resistance to Environmental Factors
TPR material maintains its integrity even during extreme temperatures, which is essential for outdoor footwear. It is allergen and toxic free and has amazing recycling properties making it an environmentally friendly option.
- Flexibility and Support
TPR is flexible, allowing the sole to move naturally with your foot. This flexibility is key for comfort, especially if you’re on your feet all day.
Is TPR Material Safe For Footwear?
TPR is one of the safest materials used in modern footwear, backed by extensive testing and certifications. Here’s what makes it stand out:
- Non-toxic composition
- Free from harmful chemicals like BPA and phthalates
- Hypoallergenic properties
- Resistant to bacterial growth
- Non-slip surface for better stability
TPR Vs. PVC: What Are The Material Differences?
Features | TPR | PVC |
Weight | Lighter | Heavier |
Flexibility | Highly flexible | Less flexible |
Durability | Moderate to high | High |
Environmental Impact | More eco-friendly, recyclable | Less eco-friendly |
Cost | Moderate | Lower |
Weather Resistance | Excellent | Good |
Chemical Resistance | Free from toxins like lead, phthalates etc | Releases harmful chemicals during production |
Which Is Better, TPR Or Rubber Sole?
While both TPR and rubber are popular in the footwear industry, each material has unique advantages.
Physical Properties and Performance
TPR soles are notably lighter than traditional rubber, making them excellent for everyday wear where comfort is paramount. They provide superior flexibility and better shock absorption, reducing foot fatigue during long periods of use.
TPR can typically last 2-3 years with regular use, while rubber soles often extend to 3-5 years.
However, rubber takes the lead in durability and grip, particularly in challenging conditions. It maintains its properties better in extreme temperatures (-20°C to 70°C) compared to TPR’s more limited range (-10°C to 60°C).
Comfort Comparison TPR vs Rubber
TPR is generally more flexible and lightweight than traditional rubber, making it comfortable for everyday wear. If we consider grip TPR might not grip well on slippery or wet surfaces. Rubber, however, provides slightly better traction and grip, especially on wet surfaces. So, it can be preferred more for outdoor or work shoes.
Cost Considerations
From a cost perspective, TPR generally offers better value, with lower production costs translating to more affordable footwear. TPR can be easily respaed and heated with minimal processing. It’s also easier to maintain, requiring simple cleaning methods to keep it looking good.
Rubber, while more expensive initially, often proves cost-effective in the long run due to its superior durability, especially in demanding environments.
Environmental Considerations
Both TPR and rubber have recyclable properties, but TPR’s synthetic nature means it can be molded and reused more easily. Natural rubber, though eco-friendly, can be more challenging to recycle effectively.
Usage Recommendations
TPR is ideal for shoes where lightweight and flexibility are needed, such as casual or running shoes. Rubber soles may be preferred for outdoor and work environments where maximum traction is essential.
TPR Vs. EVA Sole: Which Material Is Superior?
Feature | TPR Sole | EVA Sole |
Material Composition | Thermoplastic Rubber (mix of rubber and plastic) | Ethylene Vinyl Acetate (foam-based polymer) |
Weight | Slightly heavier | Very lightweight, ideal for athletic shoes |
Flexibility | Flexible with some stiffness for support | Extremely flexible and soft |
Durability | High durability, resistant to abrasion | Moderate durability, may compress over time |
Shock Absorption | Provides moderate shock absorption | Excellent shock absorption and cushioning |
Best Use | Casual, work, and outdoor shoes | Athletic, running, and lightweight shoes |
Environmental Impact | Often recyclable, synthetic composition | Typically non-recyclable, synthetic foam |
Cost | Generally cost-effective | Can be more expensive due to lightweight properties |
Pro Tip: When choosing between these materials, consider your primary use case:
- For daily wear and general purpose: TPR is ideal
- For sports and athletic activities: EVA might be better
- For work environments: Consider TPR or rubber
- For lightweight comfort: EVA is the winner
Remember: The best sole material depends on your specific needs, lifestyle, and how you plan to use the shoes.
Is TPR Material Good For Shoes
TPR offers numerous benefits that make it an excellent choice for various types of footwear.
- Comfort and Flexibility: TPR’s elastic properties make it flexible and easy on the feet, allowing natural movement that reduces strain.
- Shock Absorption: The shock-absorbing quality of TPR helps reduce the impact on feet and joints, providing added comfort for those on their feet all day.
- Lightweight Design: Despite its durability, TPR is relatively lightweight, making it perfect for daily wear and all-day comfort without feeling heavy.
Is TPR Safe For Babies And Children?
The best part about thermoplastic rubber material is that it is chemical resistant, making it completely non-toxic.
TPR is safe for babies and children because:
- It is free of harmful substances like latex, phthalates, and heavy metals.
- It doesn’t react on sensitive skin.
- It is hypoallergenic in nature, making it suitable for all age groups, including children.
- It can withstand extreme sun exposure and high temperatures. The material is soft and elastic and can be sterilized before use.
All the children’s products pass through compliances and certifications like FDA, CPSIA Compliance (in the US), and EN 71 Safety Standards (in Europe). This is to ensure materials are tested for chemical safety, allergy tests, and other criteria. Therefore, as TPR is safe to use, besides shoes, it is also used in medical devices, children’s toys, and feeding utensils.
Does TPR Sole Make Noise When Walking?
While TPR soles are silent while walking, sometimes noise can be an issue based on the surface and design involved in the situation.
On hard surfaces like tiles or wood, TPR soled shoes may create a squeaking or rubbing sound. Mainly due to friction and vibrations. However, on carpeted or rougher surfaces, TPR soles usually make a minimal sound. Also, the noise is generally less noticeable on soft surfaces like carpets or grass.
To reduce noise in TPR shoes:
- Select designs with Textured Outsoles. This creates more grip and prevents the sole from sticking to the surface as much.
- Using softer material blends can make the sole more flexible and quiet.
- The thickness of the TPR sole can also impact noise production. Thicker soles tend to absorb more impact, reducing sound. However, do not go for overly thick soles, which may produce a thudding noise.
- Adding extra cushioning or a midsole can help absorb vibrations and reduce noise.
- Using non-slip coatings or embedding small textured elements on the sole surface can reduce the amount of noise generated on smooth or wet surfaces.
But, all in all, TRP is a durable and flexible material with high-shock absorbing properties. This makes the material long-lasting and soundproof.
Now, let’s talk about TPR’s water resistance property.
Is TPR Sole Waterproof?
TPR is known for its impressive water-resistant properties, making it a great choice for wet environments. It keeps your feet dry during rainy weather. Surprisingly, it also performs well on slippery surfaces.
Certain footwear designers using TPR sole designs go the extra mile by incorporating sealed seams and hydrophobic treatments. This further boosts their ability to repel water. This means you can step out in less-than-ideal weather without worrying too much about soaked socks.
Why Are TPR Soles Popular Among Manufacturers?
When it comes to the footwear industry, choosing the right sole material is essential. TRP soles in shoes provide the right balance of comfort and performance. Be it running shoes or casual wear footwear, the TPR soles offer a range of benefits like:
- Cost-effectiveness – TPR can be easily melted and shaped with minimal chemical processing. So, while the process might seem a little expensive, it is a lot more cost-effective than other insole materials like PVC, mesh, or EVA.
- Excellent Comfort and Support – TPR insoles provide excellent comfort and support due to their flexible yet sturdy nature. This makes them ideal for people who spend long hours on their feet walking or running.
- Slip resistance and Traction – The unique blend of rubber and plastic. Rubber offers elasticity, and synthetic plastic strengthens it, making TPR slip resistant. Besides, the material provides traction to soles that can withstand rough climatic conditions.
- Durability and longevity – TPR soles material in shoes is highly durable as it is UV weather resistant, chemical resistant, and water resistant. Such qualities make it a top choice for running shoes that require high performance in harsh environments.
- Flexible designing – TPR material offers footwear excellent flexibility and structural strength. This can be attributed to the easy moulding properties of its polymers. So, even after being stretched repeatedly, it retains its original elasticity.
Frequently Asked Questions About What Is TPR Sole In Shoes
TPR sole is a synthetic thermoplastic rubber material used in the insoles and outer layer of shoes. It provides slip resistance and tight grip to your footwear, making it a preferred choice for manufacturers.
Yes, TPR (Thermoplastic Rubber) sole material is waterproof, making it excellent for outdoor activities. It keeps your feet dry by repelling water penetration.
