What are Soft PU Sports Insoles made of

Soft PU (Polyurethane) sports insoles are typically made from a type of synthetic material known as polyurethane foam. Polyurethane is a versatile polymer that can be tailored to have different properties, including softness, flexibility, and durability. Here are some key characteristics of Soft PU sports insoles:Polyurethane Foam: Soft PU insoles are constructed using polyurethane foam, which provides cushioning and shock absorption. The foam is often chosen for its ability to conform to the shape of the foot, offering comfort and support during various physical activities.Softness and Comfort: Soft PU insoles are designed to be soft and comfortable, making them suitable for use in sports and athletic shoes. The softness of the material helps reduce pressure points on the feet and provides a cushioning effect, which can be particularly beneficial during high-impact activities.Lightweight: Polyurethane is known for its lightweight nature, which contributes to the overall comfort of the insoles. Lightweight materials are desirable in sports insoles as they enhance agility and reduce the overall burden on the feet.Shock Absorption: One of the key functions of sports insoles is shock absorption, especially during activities that involve repetitive impact on the feet, such as running or jumping. Soft PU insoles excel in providing this shock-absorbing capability.Moisture-Wicking Properties: Some Soft PU insoles may also have moisture-wicking properties to help manage sweat and moisture, keeping the feet dry during physical activities.Durable: Polyurethane is known for its durability, which is an important factor in sports insoles that undergo significant wear and tear. The material can withstand repeated use without losing its cushioning and support properties.It's important to note that different brands may use variations of polyurethane or incorporate additional materials to enhance specific features of the insoles. Additionally, the design and structure of the insoles may vary based on the intended sports or activities for which they are intended.