Ultimate fit. Product description: The Chase Boa® boot provides grip at a more responsive and professional level than our other Boa® system boots. It delivers robustness and grip for all-mountain adventures, while Cloud 9 Liner and Armoured Spine ensure a fit that is characterised by comfort and support. If you are looking for the Boa® system boat with the best fit and Allmountain Flex, then youve come to the right place, because the Chase Boa® has been designed for this purpose. In our collaboration with Boa®, we have invested a lot of time to ensure that the Boa® system and cut of Nitro Boots perfectly complement each other to generate fit and support like never existed. The combination of Dual Boa® Fit System, Relace Liner Locker and Cloud 9 Liner make it a snowboard boat with the safest and most comfortable grip on the whole mountain. Robustness and driving comfort are supported by the Vibram® outsole made of Vibram® Ecostep™ compound and armoured spine. In addition, the level of comfort is increased by 1000% by air cushioning in the heel and Flex Link design in the ankle area, so you can board over slopes and through powder all day long. If you are looking for the ultimate Boa® experience, then get into a pair of the brand new Chase Boa® boots. Technical details Vibram® Outsole made of Vibram® ECOSTEP™ Compound EVA Midsole Air Dampening Therminator Shield Armored Spine Flex Link Design Dual BOA® Fit System Bail Out System Cloud 9 Liner ILS Liner Lacing Re/Lace Liner Locker Ortholite® Dual Density Footbed Response Rating: 9 Sizes Colours and Price Sizes: US Mens: 7 - 15 MoonopointEU: 38 2/3 - 49 1/3 UK Mens: 6 - 14 US Mens: 7 - 15 Mondopoint: 25.0 - 33.0 EU: 38 2/3 - 49 1/3 UK Mens: 6 - 14 Colours: Black, Pewter Black