CCM Extreme Flex 3.9 Leg Pads feature a single break outer flex to maximize flexibility, a pre-curved single break core to close the 5-hole on the inner flex, a 90° with Torsional flex on the boot flex so you're ready for the power push, and a deep ultra soft boot channel to increase your freedom of movement. The leg channel and calf strap options feature a tight fit 1 calf strap to be lightweight with a closer feel to the leg for better control. Single adjustable knee (or below knee) strap system for a custom fit. Recessed foam with removable knee cradle wrap to help further close the 5 hole. New lightweight thin molded foam core offers a weight balance for quicker transition into butterfly. PE foam knee raiser seals pad to the ice. Legal thigh and knee protector protects the thigh and knee.