2025 K2 BOUNDARY BOOT

Features, Technology, and Fit That Won’t Break the Bank

The K2 Boundary follows a tried-and-true formula that delivers on its promise of being a snowboard boot you’ll love from the first time you put it on. It nails the sweet spot for freestyle and all-mountain snowboarders who prioritize flex, comfort, and fit.

The K2 Boundary follows a tried-and-true formula that delivers on its promise of being a snowboard boot you’ll love from the first time you put it on. It nails the sweet spot for freestyle and all-mountain snowboarders who prioritize flex, comfort, and fit.

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.

Boot Lacing

TX3 BOA® Lacing,H4/M3 Zonal BOA® Fit System

Articulating Cuff Upper with HDR Premium Synthetics:

Independent upper cuff articulation delivers a distortion-free flex while HDR synthetics improve overall shell durability.

Intuition® Control Foam 3D Liner:

Heat moldable medium and high-density Intuition® foam forms to the exact shape of your leg, ankle, and foot for superior fit, warmth, and comfort.

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.

Harshmellow™ Insole:

Freestyle-friendly single-density insole using Harshmellow™ from toe to heel for ultimate impact absorption.

This Grips!™ Premium Rubber Outsole with Harshmellow™:

New! For 2023 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.

H4/M3 Coiler Zonal BOA® Fit System:

Impact resistant, durable, and performance-driven, the H4 BOA® Dial ejects on severe impact and is easily re-inserted into the boot. The H4 dial controls the upper shell lacing, and the M3 dial controls the lower shell lacing.

80% Recycled Packaging:

80% Recycled FSC® Certified Carboard Packaging with 99% Recycled Packaging Paper

 

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
15		14	50	33