Now with replaceable capadjustable top strap for snug fit to prevent slippage wopen back butterfly straps washable built for protection and comfortthe scabs pad is the top of the linebuilt for extreme streetramp ridingthe articulated design forms to the knee making it a flexible and contoured non sliding fitthe special foam system provides ultimate protection on impact areas and longevity of the padsthe wide adjustable fitting elastic strap and two adjustable neoprenevelcro closures