The Riddell SpeedFlex Hard Cup Legacy Chinstraps are specially designed for the SpeedFlex helmet and employ the Cam-Loc system. The cam-loc quickly locks the helmet on to the players head to ensure a tight, proper fit every time the helmet is worn. Fits Riddell SpeedFlex helmets ONLY. Chinstrap Type: Standard Hard Cup Materials: Chinstrap 2 Cam-Loc Systems Hard Shell Sizes: Small Colors: White, Black, Cardinal, Forest Green, Green Bay Gold, Kelly Green, Maroon, Navy, Orange, Purple, Royal Blue, Scarlet WARNING: Chinstraps DO NOT come with thumb screws. Use the thumbscrew that came with your helmet. SpeedFlex Emergency Repair Kits are also available and include extra thumbscrews. Cam-Loc straps DO NOT FIT the Ratchet System Ratchet straps DO NOT FIT the Cam-Loc System $5 restock fee for all returned chinstraps shipped as ordered.