VK BOA® is the trail running shoe designed for Vertical Kilometer races, developed with the record-holding sprinters of the discipline and enriched by the BOA® Fit System. Every detail has been meticulously designed to reduce weight and volume to a minimum for maximum uphill performance. The fast and intuitive BOA® Fit; works in perfect unison with the flaps on the upper to wrap around the foot with precision. The Sock-Like uppers are made from bi-elastic mesh to guarantee freedom of movement. The 3D Heel provides maximum comfort and heel support. The TPU toe cap is lightweight and protects against knocks. The super lightweight FriXion White compound is a concentration of technology with tread only where necessary. VK BOA®: go vertical!