Designed for the long haul, the all-new K2 Waive snowboard boot is built for those extended days in the split track. We've packed the Waive full of the best split-specific features - and it starts at the sole. Our vibration-damping Harshmellow™ material is wrapped in a full Vibram® V5 outsole - durable, lightweight, and grippy. A crampon-compatible heel stabilizer helps keep your heel aligned on the walk up and gives the descent extra security. We've modified our trademark Endo™ Construction heel counter to allow the K2 Waive Snowboard boot to have a designated walk mode. By releasing the BOA® dial, it will enable the calf panel of the boot to open up, giving you the ability for a longer stride in the skin track but all the stability in the world that you need for the ride down. A traditional lace, exterior Power Strap, and lace cover keep you secure and keep the snow out. It goes without saying, but the magic starts from the inside with a snowboard boot. Our Intuition® Pro Foam Liner with Spaceheater™ is warm, comfortable, and heat-moldable. A comfortable and customizable Conda™ heel retention device keeps your foot position comfortable and removes the stress of heel lift when the terrain gets a bit spicy. BEST FOR: FLEX: TRADITIONAL SHELL LACING: Top-to-bottom traditional shell lacing provides a custom fit and hassle-free simplicity. LACE COVER: A lace cover helps keep snow out of your tongue area, reducing the ability for snow to get inside your shell. VIBRAM® V5 RUBBER OUTSOLE: Our most premium rubber compound provides industry leading durability and grip and integrated with Harshmellow™ foam to absorb chatter and vibration. ENDO™ 2.0 CONSTRUCTION: A K2 Snowboarding exclusive, Endo™ Construction, allows us to alter a snowboard boot's flex, response, and rebound without adding extra materials (extra materials = excess weight). By replacing additional materials with an injected heel counter, adding an extra rebound is as easy as a formula change. In addition, it helps us to provide a more consistent flexing, longer-lasting snowboard boot. LINER-LITE SNOW CAMP READY LINER COATING: An additional weather protective liner coating keeps your feet warm and dry in the harshest conditions. 3-POINT HARNESS LINER LACING: The 3-Point Harness is a straightforward solution that doesn’t skimp on support. Instead, this system aims to optimize heel hold while providing ankle support and unrivaled stability to help reduce fatigue. A taller Pro Version is found on Orton and Format models for additional support. 3D FORMED DUAL DENSITY EVA FOOTBED: Dual-density EVA foam provides contouring cushioning and support to support snowboarding all day long. MEN'S US WOMEN'S US UK ADULT EURO ADULT CM 8 9 7 40.5 26 9 10 8 42 27 10 11 9 43.5 28 11 10 44.5 29 12 11 46 30 13 12 48 31 14 13 49 32 S+W Verdict: "Cracking free ride/split boot. Really is one boot to rule them all, freeriding in the morning with a cheeky split in the PM. Walk mode should lengthen your stride too for skining or hiking. The Internal heel retainer is pretty impressive. Perhaps not a capable or durable as the Fitwells for a mountain boot, but do you need that level?"