Velcro fastening Protection while driving Soft inner lining 2x knee pads 2x wrist guards 2x elbow pads Technical specifications: Knee pads: S (19-22cm), M (22-25cm), L (25-28cm) Material composition: 20% polyester/cotton (mesh), 45% foam, 35% plastic Elbow pads: S (14-17cm), M (16-19cm), L (20-23cm) Material composition: 20% polyester/cotton (mesh), 45% foam, 35% plastic Wrist guards: S (13-16cm), M (17-20cm), L (19-22cm) Material composition: 18% polyester/cotton (mesh), 45% foam, 35% plastic, 2% metal