Designed for skaters that need more padding, the Triple Eight KP 22 Skateboarding Knee Pads combine durability and comfort for getting back up after a fall. These sleeveless skateboarding knee pads have heavy duty EVA memory foam for maximum padding. Their high?density, impact-resistant knee cap has a flat cap design that is securely attached with reinforced rivets for longevity and stability. The easy on/easy off, sleeveless design features a neoprene butterfly closure and wide, reinforced webbed elastic straps on top and bottom with adjustable hook and loop closures for a secure and comfortable fit. Triple Eight’s multi-sport knee pads are ideal for skateboarding, roller skating, roller derby, and biking, and are available in five sizes to fit kids, youth, and adults: Junior fits 11?12.5 in (28?32 cm), Small fits 12.5?14.5 in (32?36 cm), Medium fits 14.5?16 in (36?40 cm), Large fits 16?17 in (40?44 cm), and X-Large fits 17?19.5 in (44?50 cm). To determine proper size, measure circumference of extended knee. Sold as a pair. Manufacturer?s limited 180-day warranty.