Superleggera KB-10 kart boots offer high-tech innovation and materials. COMPOSITION: Superleggera KB-10 uppers are made from a breathable pressed fabric with abrasion-resistant injected moulded TPU. The TPU is injection moulded on the fabric to avoid the use of stitching. The boots feature: synthetic leather reinforcements, heel protectors in padded abrasion-resistant 3D material, internal laces and insoles. Superleggera KB-10 racing boots have an elasticised panel at the rear just above the heel to improve fit and allow the ankle to move freely when driving. Light asymmetrical soles feature an integrated external reinforcement for the area most affected by wear from using the pedals.