Built for aggressive sled and mountain riding with dual-zone BOA control and serious insulation. The H4 Coiler tongue reel and H4 remote reel split tension between forefoot and cuff for precise lock-in, while a reinforced inner harness and 3D molded tongue stabilize the ankle and keep heels put. An articulated upper cuff maintains flex without shell collapse, backed by a molded heel flex insert for controlled rearward movement and impact support. FXR's high-traction outsole with toe/heel kicks bites on boards and snow, and a 23mm EVA midsole soaks up hits. Half Velcro gaiter sheds water and ice at the tongue. Minimal sled-contact seams, ultra-low profile toe box for shifter clearance, and removable slip-on liner with mesh lining. Rated to -75C with 1200g insulation.
- Maximum support and protection for aggressive, MTN, and race use
- Rated to -75C with 1200g insulation
- Reinforced inner harness + 3D molded tongue for heel lock and ankle support
- Molded inner heel flex insert for backward flex control and impact support
- Articulated upper cuff to reduce shell distortion when flexing
- BOA dual zone: H4 Coiler tongue reel + H4 remote reel
- FXR high-traction outsole with toe and heel kick
- 23mm EVA midsole for impact absorption and rebound
- Half Velcro gaiter to shed water and ice
- Minimal seams in sled-contact areas
- Ultra-low profile toe box
- Slip-on removable liner with mesh lining
- Contoured grab handles for one-handed carry