Manufactured in sizes specifically for younger kart drivers, these Sparco K-Run kart boots are designed for maximum performance and driver comfort. The microfiber leather construction together with the ultra-breathable 3D mesh provides a comfortable fit with reduced breathability. Lightweight and breathable for optimal comfort. Specific sizes for children Redesigned heel area for better support and reduced fatigue Antibacterial and breathable inner lining to keep boots cool between races. The technical rubber sole provides optimum grip and feel on the pedals. The Sparco K-Run kart boots have been developed in a range of modern designs with striking color schemes so you can stand out from the crowd. Not only do they look gray, but they offer high levels of performance that karters can use at any level. In addition to the performance features outlined above, these boots also include bellows on the back heel for added comfort and an improved inner sole to reduce pressure and pedal vibrations. An internal lace system with velcro strap provides a snug and secure fit with optimal support.