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.
H4/M3 Focus BOA Fit System with TX3 Lacing
- BOA System:
- H4 Dial: Manages upper shell lacing, impact-resistant and ejects on severe impact.
- M3 Dial: Controls lower shell lacing.
- TX3 Lacing: Made from recycled PET, offers flexibility like traditional laces but with enhanced closure.
Articulating Cuff Upper with HDR Premium Synthetics
- Materials: Durable synthetic materials with articulation around flex points to prevent shell distortion and heel lift, maintaining shape.
Intuition Control Foam 3D Liner
- Composition: Mix of high and medium density Intuition foam for versatility.
- Features: Internal and external J-Bars, 3D molded EVA insole for comfort and support.
Internal & External J-Bars (Liner)
- Function: Adds structure and reduces heel lift.
3-Point Harness Liner Lacing
- Design: Traditional pull lace with three contact points for ankle support and stability, reducing fatigue.
Harshmellow Insole
- Benefit: Single-density insole with Harshmellow for superior impact absorption.
This Grips! Premium Rubber Outsole with Harshmellow
- Design: Dual-density rubber outsole inspired by skate footwear.
- Features: Rounded heel for reduced drag, wrapped arch for support, and Harshmellow for vibration damping.







