BOA® Snowboard Boots for Men.Features include:, Dual BOA® Fit System with H4 Coiler Dial, Vibram® outsole, Response Liner III, Impact-ALG™ technology features a polyurethane airbag to provide superior cushioning and impact protection, Insulation:3M™ Thinsulate™ insulation, Internal ankle harness, Aerotech ventilation system, BOA® Black SS Laces, Flex Rating:7/10.Composition:Upper:Synthetic / Lining:Textile / Outsole:Eva.