Product Description Improved with input from pro riders, the DC Judge snowboard boots are designed from top to bottom to handle any mountain terrain so you can let it rip this winter on the slopes. Additional Details and Features Flex rating : 6 (on a scale of 1-10, with 1 being the softest, 10 being the stiffest) Advanced R3 liners include PrimaLoft(R) insulation Dial in the perfect fit in seconds with the Dual BOA(R) Fit System with H4 Coiler dial Zonal Closure allows you to tighten and or loosen specific zones of your boots using individual dials to find that perfect fit for your performance and comfort needsResponse Liner III is warm, technical and responsive Molded IMPACT-ALG insoles add comfort and better heel hold; insoles are made from recycled algae Internal ankle harnesses built into the interiors of the boot shells help keep the boot liners in place and aid in preventing heel lift Articulated construction allows even flex throughout the boots and helps to minimize both hot spots and boot wear Proprietary Aerotech ventilation system aligns venting windows on the boot shells and liners to exhaust unwanted moisture away from your feet to keep your feet dry and warm BOA black stainless-steel laces Vibram(R) rubber outsoles keep the boots grippy yet light