04/09/2026
Choosing the right arch support shell material depends on more than stiffness alone. TPU, PP, Nylon, PA11/PA12, carbon composites and EVA each offer different trade-offs in flexibility, weight, thickness, durability and manufacturability.
The key is to match material + shell geometry + thickness + manufacturing process to the intended application, whether the insole is designed for orthotic, sports, work or everyday use.
This guide compares the most common arch support shell materials and explains how to choose the right option based on performance needs, product design and production requirements. 👇
Compare arch support shell materials including TPU, PP, Nylon, PA11/PA12, carbon fiber and EVA to balance support, weight, cost and manufacturability.