The art of boot craftmanship is alive and well. The art of boot craftmanship is alive and well, and the Mach1 LV 120 is a product of this nearly lost art. Tecnica stepped up the performance, fit-out-of-the-box and personalization options in this brand new release. With the confidence to improve, Tecnica modernized the LV fit and performance - while holding true to the benefits that Custom Adaptive Shape has provided. A fresh new T-Drive system ensures a consistent and progressive flex, while also supporting easier access when getting in and out of the boot. Feel Real Shape, Fit and Performance. Flex: 120mm Last: 98mm Volume: LV Features: Liner: Ecodesign - Performance - C.A.S. - Celliant® - Adjustable Tongue Soles: Gripwalk (ISO 23223) Shell: PU - C.A.S. with Quick Instep Cuff: Bi-Injected PU with Backspine Buckles: 4 Micro Adjustable Aluminum with Lift Lock Powerstrap: 45 mm Velcro Strap Forward lean: 14.0°