Size Chart: Please refer to the instructions in picture 5, 6 to measure.
Size XXXS Fits weight 12.5-17.5kg
Size XXS Fits weight 17.5-22.5kg
Size XS Fits weight 22.5-32.5kg
Size S Fits weight 32.5-42.5kg
Size M Fits weight 42.5-55kg

About this item:
1.Thick sponge protection on elbow & knee,Perfect for most sports activities like jogging, running, dancing, football, basketball,volleyball, skating,cycling,sports and more. joint pain relief and injury recovery,very effective avoid bruise and arthritis.
2.High performance elastic fabric. tightly fixed in the legs, not easy to slip when in sport,It keeps your baby protected against impact injuries. Offers sturdiness and stability to your baby's knees with a snug fit.
3.Stretchy,breathable,comfortable, lightweight and protective,protects knees against scrapes.
4.Soft fabric allows greater flexibility motion, you kid need a pair of elbow/knee support cover in summer when they wear shorts.
5.Size available:  Size XXXS to M, suitable for weight 12.5kg-55kg.

Specification:

Package include: 1Pair(2Pcs) of Elbow Knee Pads 
Material: Sponge
Color: Black
Size: XXXS, XXS, XS, S, M
Application: Football, Volleyball, Basketball, Cycling, Skiing, Snowboarding, Badminton, Wrestling, Hockey, Snowboard, other Extreme Sports.