What kind of material is typically used for backstay in a shoe?

The backstay of a shoe, which is a reinforcement located at the back of the shoe, is commonly made of leather due to its durability and ability to provide structural support. Leather offers a combination of strength, flexibility, and comfort, which is essential for maintaining the shape of the shoe and ensuring that the heel region does not deform over time. In therapeutic shoes, where proper fit and support are critical for foot health, leather plays an important role in preventing injuries and improving comfort for the wearer.

While alternatives like canvas, nylon, and rubber may be used in different parts of shoes or in varying contexts, they do not provide the same level of support and sturdiness that leather does in the backstay. Canvas, for example, is more flexible and may not offer the necessary rigidity, while nylon is often utilized for lighter, breathable shoe components. Rubber can provide traction and durability but lacks the structure needed for a backstay. Hence, leather is the preferred choice for backstays in therapeutic footwear.