Triple 8 Street 2 Pack Combo Pad Set. Features: Includes a Set of Compact Knee and Elbow Pads with High Density Contoured EVA Foam Impact Resistant Polyethelene Caps Securely Attached with Reinforced Rivets Knee Pad Has a Butterfly Closing System That Allows for Easy On and Off Elbow Pad Comes with a Cool, Comfortable Lycra Sleeve Pads are Ergonomically Designed for Comfort Sizing: (To ensure a perfect pad fit, measure circumference of extended knee/elbow and match to the sizes listed below.) XS: Knee: 11" - 12.5" / 28cm - 32cm; XS: Elbow: 5" - 6" / 12.2cm - 15.2cm Small: Knee: 12.5" - 14.5" / 32cm - 36cm; Small: Elbow: 6" - 8" / 15.2cm - 20.3cm Medium: Knee: 14.5" - 16" / 36cm - 40cm; Medium: Elbow: 8" - 10" / 20.3cm - 25.4cm Large: Knee: 16" - 17" / 40cm - 44cm; Large: Elbow: 10" - 12" / 25.4cm - 30.5cm This Triple 8 Street 2 Pack Combo includes Street Knee and Street Elbow Pads. Great for the skater that is starting to experiment with tricks, slides and falls.