Combining a light-weight knee brace sleeve and hyper-technical motocross sock created a potent component of riding gear. Comforts without constricting through an advanced blend of materials and attention to cooling. Foot has the same construction as regular Proforma Sock. Leg is constructed of lightweight Polyester/Spandex with mesh back panel. Just-above-knee height. Great for riders wearing knee braces. Youth fit and sizing. Youth sizing 1-7.