Dakine Slayer Knee Sleeve Black 2023 The Slayer Knee Pads set the standard for lightweight, pedal friendly and CE-certified knee pad design. Featuring dual-density DK Impact foam and a durable Cordura outer, these pads maintain a breathable design that's light and comfortable enough for longer rides and hot weather. Their pre-curved shape and flexible foam design maintain a custom-fit feel, while silicon gripper cuffs ensure a slip-free fit. Integrated odor control helps fight the stink factor. For the thigh measurement, measure around your leg 4 inches above your knee. For the calf measurement, measure around the fullest part of your calf.