Tecnica Mach BOA MV 100 Men’s Ski Boots. Intermediate level skiers with mid-volume fit needs that are looking for a Dialed In precicsion fit — meet the all new MachBoa MV 100. With a medium volume anatomically shaped lower shell crafted specifically for the BOA® Fit System, this boot delivers on Tecnica’s commitment to performance and fit. With a simple turn of the dial, you get a secure performance fit, while the contoured liner provides exceptional comfort. Stay locked in all day. Closure Type : Strap, Buckle. Best Use : Snowsports, All Mountain Skiing. # of Buckles : 2.