Ski boots: The Head FORMULA RS 110 GW combines the best of both worlds: high performance and all-day comfort. They have extended toe space, a balanced Race stance that allows skiers to be more focused, and a 98mm hoof. The shell has an adjustable flex from 110 to 120, cuff alignment and four low-profile Spine-Flex buckles with micro-adjustment. The 3D Pro Formula insole has a heel and ankle Liquid Fit support system and a 45mm Velcro strap for a blister-free athletic fit.