FIA 8877-2022 approved for karting Unrivaled performance & comfort Asymmetric speed lace system Alpinestars have taken the hugely popular Tech 1-KX kart boot and taken it to the next level with this V3 version by engineering it to be compliant with the latest FIA 8877-2022 approval which ensures the best possible levels of protection. This has been achieved while still retaining a light weight with excellent breathability. Improved levels of protection in accordance with the FIA 8877-2022 approval Lightweight materials and seamless construction minimise weight and improve comfort Laser cut perforations in strategic areas allow for maximum airflow to keep your feet cooler and reduce perspiration providing longer lasting comfort Sleek anatomical shoe profile adapts perfectly to the foot shape ensuring the best fit and support Asymmetric lacing and and adjustable ankle strap provide a secure and comfortable closure F1 derived thin rubber sole ensures optimum sensitivity and maximum grip on the pedals for improved kart control PU foam padded collar offers comfortable support while keeping weight to a minimum External heel and internal toe reinforcem