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, with Cloud 9 Liner and Armoured Spine providing a fit that is characterised by comfort and support. If you are looking for the Boa® System boot with the best fit and all-mountain flex, then you have come to the right place, because the Chase Boa® was designed for this purpose. In our collaboration with Boa®, we invested a lot of time to ensure that the Boa® system and cut of Nitro Boots complement each other perfectly to generate fit and support like never before. The combination of Dual Boa® Fit System, Relace Liner Locker and Cloud 9 Liner make it the 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 dampening in the heel and Flex Link design in the ankle area, so you can board slopes and through powder all day long. If you are looking for the ultimate Boa® experience, then step 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 Moon 2. 5.0 - 33.0 EU: 38 2/3 - 49 1/3 UK Mens: 6 - 14US Mens: 7 - 15 Mondopoint: 25.0 - 33.0 EU: 38 2/3 - 49 1/3 UK Mens: 6 - 14 Colours: Black, Pewter Black