1. About materials We use pure natural good raw materials, active and natural dyeing materials, fabric environmental protection soft and tenacious, rich feel.Provide you with the best comfortable wearing experience. 2. About design 3D design u-shaped convex pouch and larger breathing space.Let your "secrets" have a better health and feel in a comfortable environment. 3cm wide belt can bring better comfort.Soft and elastic.This is to eliminate compression and tension.Prolonged use will not loosen. 3.