evo.com | Rossignol Snowboard Boots > The Rossignol Crank BOA H4 Snowboard Boots are built for progressive all-mountain riders who want support, precision, and zero hassle when it is time to ride. The BOA(R) H4 Coiler system delivers a fast, dialed fit with a twist, while the stiff articulated cuff adds the support needed to push progression without feeling like the boots are doing all the thinking. A thermo-moldable True Form liner keeps things warm, snug, and custom to the foot, and EVA cushioning plus a grippy rubber outsole handles impact and boot-pack chaos like it is all part of the plan. Articulated Upper Cuff The upper part of the shell moves independently from the lower part, reducing shell bending and providing a softer flex and smoother feel. True Form Thermo Moldable Liner The internal shell lasts match the liners perfectly for the best out-of-the-box fit Boa(R) H4 Coiler Consists of three integral parts: A microadjustable idal, super-strong lightweight laces, and low-friction lace guides. Ortholite(R) Dual Layer Diecut Footbed Full-length comfort mesh combined with 52% recycled EVA and Rest & Relax Hybrid foam for elevated comfort, support, and stability. Flex Rating 5 (1 Soft - 10 Stiff) | Rossignol Crank Boa H4 Snowboard Boots 2027 - 10.5 in Blue | Rubber