The Burton Ruler BOA snowboard boots are the choice for bigger descents and more demanding features. With an overall medium flex and responsive feel, the Ruler raises the bar for control. A dual zone BOA fit system allows you to independently micro-adjust the fit and feel of the forefoot and cuff tension to match your ambitions. Cold feet will be a distant memory of your old boots thanks to the insulating and heat-reflecting technology of Ruler's thermo-moldable liners.Features:- Laces Dual-zone BOA Fit system with Coiler technology features two distinct lacing zones that can be independently adjusted with the turn of a dial for a custom fit on both the top and bottom of the boot- Flex/Response: Durable synthetic backstay adjusts the fit between the boot and high back for direct energy transfer and reduces rider fatigue.