The K2 Boundary follows a proven formula that delivers on the promise of being a snowboard boot you'll love from the first time you put it on. It meets perfectly halfway between freestyle and all-mountain snowboarders who prioritize flexibility, comfort and fit. The K2 Boundary snowboard boot features a dual-zone closure with BOA® Fit System to optimize your fit. A dedicated BOA® dial for the top and a second dial dedicated to closing the bottom. The upper cuff of the boot is made from our premium HDR synthetic materials. It features a fully articulated design, which increases the durability factor and reduces distortion of the shell as it flexes forward. Inside, a three-point support harness is integrated into the shell, which wraps around a heat-moldable Intuition® Control Foam 3D liner for the ultimate fit. Underfoot, the patented This Grips!™ rubber outsole provides excellent grip when hiking, in icy parking lots and in all types of snow, and sits atop a dual-density midsole. This midsole features a lightweight EVA material and is complemented by Harshmellow™ damping material to cushion your feet and reduce fatigue after long days on the mountain.
MEN'S BOOTS SIZE CHART K2
| US Size | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13 | 14 | 15 |
| EU Size | 36.5 | 37 | 38 | 39 | 39.5 | 40 | 40.5 | 41.5 | 42 | 42.5 | 43.5 | 44 | 44.5 | 45 | 46 | 47 | 48 | 49 | 50 |
| UK Size | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 13 | 14 |
| CM Size | 23 | 23.5 | 24 | 24.5 | 25 | 25.5 | 26 | 26.5 | 27 | 27.5 | 28 | 28.5 | 29 | 29.5 | 30 | 30.5 | 31 | 32 | 33 |