The K2 Boundary snowboard boot features a dual-zone closure with BOA® Fit System to micro-tune your fit. A dedicated BOA® dial for the upper shell and a second dial dedicated to closing the lower part of the shell. The upper cuff of the boot is constructed with our HDR Premium Synthetics. It features a fully articulating design, upping the durability factor while reducing the distortion of the shell as it flexes forward.
Inside, a supportive three-point harness is integrated into the shell, wrapping itself around a thermoformable Intuition® Control Foam 3D liner for the ultimate fit.
Underfoot, our proprietary This Grips!™ rubber outsole provides excellent grip while hiking, boot packing, and walking across icy parking lots and sits atop a dual-density midsole. This midsole features a lightweight EVA material and is complemented with our Harshmellow™ damping material to cushion your bones and reduce fatigue after long days on the hill.
Ability
Intermediate, Advanced
Category
BOA®, BOA® Zonal
Footbed
Harshmellow™ Insole
Gender
Men's
Snowboard Boot Lacing
TX3 BOA® Lacing, H4/M+2 Zonal BOA® Fit System
Snowboard Boot Liner Construction
Intuition® Control Foam 3D
Snowboard Boot Liner Lacing
3 Point Harness, Lace Lock
Snowboard Boot Outsole
This Grips!™ Premium Rubber, Harshmellow™
Snowboard Boot Upper
Articulating Cuff, HDR Premium Synthetic
Best For:
FREERIDE
ALL MOUNTAIN
FREESTYLE
POWDER
Flex:
3-Point Harness Liner Lacing:
A traditional liner harness with a pull lace and three contact points hugs the ankle to provide additional support and unrivaled stability to help reduce fatigue.
TX3 BOA® Lacing:
A softer lace explicitly made for snowboard boots that provides a more even fit over the body of the boot shell versus a steel lace.
Articulating Upper Cuff:
Articulating Upper Cuff - Independent upper cuff articulation delivers a distortion-free flex.
Internal & External J-Bars (Liner):
Intuition® Control Foam 3D Liner:
This Grips!™ Premium Rubber Outsole with Harshmellow™:
Premium dual-density rubber outsole featuring K2’s proprietary This Grips!™ compound. Taking inspiration from modern skate footwear, our new cupsole outsole features a rounded heel for less drag while hiking, a wrapped arch for support and stability, & vibration damping Harshmellow™ in the heel and forefoot.
Harshmellow™ Insole:
Freestyle-friendly single-density insole using Harshmellow™ from toe to heel for ultimate impact absorption.
HDR Premium Synthetics:
Eight times more durable than a standard polyurethane material, HDR Premium Synthetics is a proprietary synthetic durable finish designed for extreme conditions. The dynamic resin system provides exceptional abrasion and durability performance well beyond standard synthetic materials.
H4 Coiler/M+2 Zonal BOA® Fit System:
A cable and reel based lacing system that creates even tension and easy lacing operation. This system features low friction guides for even tightening. BOA® Coiler works to automatically retract lace slack so your boots stay nice and neat.
Size Chart
| MEN'S US | WOMEN'S US | UK ADULT | EURO ADULT | CM |
|---|---|---|---|---|
| 5 | 6 | 4 | 36.5 | 23 |
| 5.5 | 6.5 | 4.5 | 37 | 23.5 |
| 6 | 7 | 5 | 38 | 24 |
| 6.5 | 7.5 | 5.5 | 39 | 24.5 |
| 7 | 8 | 6 | 39.5 | 25 |
| 7.5 | 8.5 | 6.5 | 40 | 25.5 |
| 8 | 9 | 7 | 40.5 | 26 |
| 8.5 | 9.5 | 7.5 | 41.5 | 26.5 |
| 9 | 10 | 8 | 42 | 27 |
| 9.5 | 10.5 | 8.5 | 42.5 | 27.5 |
| 10 | 11 | 9 | 43.5 | 28 |
| 10.5 | 9.5 | 44 | 28.5 | |
| 11 | 10 | 44.5 | 29 | |
| 11.5 | 10.5 | 45 | 29.5 | |
| 12 | 11 | 46 | 30 | |
| 12.5 | 11.5 | 47 | 30.5 | |
| 13 | 12 | 48 | 31 | |
| 14 | 13 | 49 | 32 |
