Supporter that firmly supports the arch of the foot. Flat feet Plantar fasciitis - Product Name: Arch Support Supporter - Brand: QLAXIS - Materials: Nylon, Polyester, EVA - Washing Instructions: Hand washable - How to Use: Use to fit the arch of the foot - Features: Supports the formation of the arch of the foot I tried it on once. It was too loose for my child. Suitable for adults. No stains. Thank you for viewing.