Differences Between Shoe Soles: Rubber, TPU, EPR, Termo, Tunnel

1. Rubber

• Very durable and abrasion-resistant
• Slip-resistant (high grip)
• Flexible but slightly heavier than other materials

2. TPU (Thermoplastic Polyurethane)

• Lighter than rubber
• More transparent and visually appealing (allows special designs)
• Highly resistant to abrasion and cracking
• Less slip-resistant compared to rubber

3. EPR (Ethylene Propylene Rubber)

• Good resistance to heat and chemicals
• Flexible and soft
• Lighter than rubber
• Less durable compared to TPU and rubber

4. Termo (Thermoplastic Rubber)

• A combination of rubber and plastic
• Lightweight and relatively soft
• More affordable
• Less durable than rubber and TPU

5. Tunnel

• Mainly used in handmade and leather shoes
• The sole has a tunnel-like space inside for stitching or special shaping
• Gives a classic and elegant appearance
• Usually less flexible than industrial soles
• Highly durable but mostly used for formal shoes