Youth Bionic Plus Knee ProtectorsAsymmetrical and lightweight ergonomic panel construction offers extended protection surfaces to reduce rotation. Dual strap closure system on Knee Protectors specially designed to offer more comfort and adjustment, with top strap mounted above the knee and lower strap positioned for ergonomic fit. Vented panels and 3D mesh material give comfort to the rider, preventing heat build up while maintaining tactile contact with skin. Designed with a flexion