Eva Imported Sleeveless skateboarding knee pads with heavy duty EVA memory foam for comfort and maximum padding High–density, impact-resistant knee cap has a flat cap design and is securely attached with reinforced rivets for longevity and stability Easy on-and-off sleeveless design features neoprene butterfly closure and wide, reinforced webbed elastic straps on top and bottom with adjustable hook and loop closures for a secure fit Available in five sizes: JR fits 11–12.5 in (28–32 cm), S fits 12.5–14.5 in (32–36 cm), M fits 14.5–16 in (36–40 cm), L fits 16–17 in (40–44 cm), and XL fits 17–19.5 in (44–50 cm) Includes one pair of knee pads; to determine proper size, measure around extended knee; manufacturer’s limited 180-day warranty