G-Form E-Line Knee Guard - Storm LargeG Form E Line Knee Guard Storm Large. Lightweight flexible pad that moves with your body the E Line Knee is designed for the ultimate e bike enduro and downhill rides. Body mapped impact absorbing SmartFlex pads offer form fitting and lightweight protection that is flexible as you ride and hardens on impact Top and bottom adjustable hook and loop fit straps for customized comfort fit and security Rugged Armortex (Kevlar blend material) pad covering