Traditional lacing combines with a Boa powered Intuition Comfort Foam 3D Liner, a vibration damping Harshmellow footbed, and a medium-soft flex that won't hinder you while you contort yourself in the air. No need to worry about late fees, the K2 Overdraft Snowboard Boots are here to shred, no strings attached. Flex Rating 5 (1 Soft - 10 Stiff) Intuition Comfort Foam 3D Liner Built for comfort and long-lasting fit, this liner is a softer build and features both internal and external J-Bars for added ankle support and heel hold. Articulating Cuff Upper This Grips! Premium Freestyle Outsole Premium dual-density rubber outsole featuring K2’s proprietary This Grips Compound. Taking inspiration from modern skate footwear, the new cupsole outsole features a rounded heel for less drag whille hiking, a wrapped arch for support and stability, and vibration damping Harshmellow in the heel and forefoot. Harshmellow Footbed Three separate compositions, Pro, Plus, and Base, now all incorporate K2’s proprietary Harshmellow damping into the layup of the footbed. The result is superior vibration absorbing and comfort for all-day excursions into the backcountry or hiking and riding around the resort.