Kids Nandn Little Explorer Professional Snow Hip Pad & Knee Pad SetKey Features: EVA Foam Protection Momentarily Stiffens Upon Impact to Dissipate Energy Ergonomic Hip, Tailbone, and Sit Bone Padding Designed to Flex and Move with your Body Elastic Waistband Adjustable Velcro Straps Closure Size Recommendation: Size XXS For Under 100 cm 3 ? Height & 28 40 kg 61 88 lb Weight Size XS For100 130 cm 3 ? 4 ? Height & 40 60 kg 88 132 lb Weight Size S for 130 150 cm 4 ? 4 1 ? Height & 60 80 kg 132 176 lb Weight