What material is commonly used for making custom orthotic devices?

Polyurethane is frequently chosen for making custom orthotic devices due to its excellent properties that cater to the needs of foot support and comfort. This material is lightweight and offers good cushioning, which enhances user comfort. Additionally, polyurethane can be molded to accurately fit the specific contours of an individual's foot, allowing for better weight distribution and pressure relief. Its durability also means that orthotics made from polyurethane can withstand repeated use without significant degradation over time, ensuring long-lasting support. Unlike the other materials listed, polyurethane's combination of flexibility, strength, and shock absorption makes it particularly suited for custom orthotics.