Atomic Hawx Prime 100 Boa Boots 2026

The Boot

The Atomic Hawx Prime 100 BOA is an all-mountain ski boot built around a 100mm mid-volume last and a flex index of 100, enough response to push through a turn, forgiving enough that you're not fighting the boot all day. The BOA H+i1 closure on the lower shell handles what buckles usually do down there — micro-adjustable, bi-directional, dead-simple to dial in on the chairlift.

The shell and cuff are both heat-moldable through Atomic's Memory Fit process. That's not just the liner — the actual plastic reshapes to your foot and leg, expanding up to 6mm in the forefoot and 10mm at the ankle. Combined with the Mimic Silver Liner, which heat-molds through the heel and ankle independently, you can get a pretty dialed fit without grinding. Two 6000-series aluminum cuff buckles handle the upper, and dual-sided cuff alignment lets us fine-tune the canting to your stance.

Who it's For

This boot is built for intermediate to solid-intermediate skiers with average-width feet — not wide, not narrow. The 100mm last fits a medium-volume foot well right out of the box, and Memory Fit takes care of the rest. If you've been renting and are ready to own a boot that actually fits, or you've been in an entry-level boot and want something with a little more feedback without a punishing flex, this is the right step up. It suits skiers who spend most of their time on groomed terrain and occasional off-piste, and who want comfort across a full day rather than a race-tuned wrap.

Flex & Fit

Flex 100 is a medium flex. It moves, but it doesn't fold. At speed on a groomer it gives you enough resistance to load the ski; on a slower day it won't beat you up. For reference, a flex 80 is notably softer and a flex 120 starts to feel stiff to anyone who isn't skiing aggressively. The 100 is the right number for an intermediate skier who skis a few times a season up through someone who skis regularly but isn't chasing steep lines.

Fit starts at that 100mm last. Memory Fit adds the ability to heat-mold both shell and cuff — something most boots at this price only do with the liner. The Mimic Silver Liner heat-molds independently through the heel and ankle for a 3D fit that cuts down on pressure points and heel lift. We do our own heat-molding in-store; plan about 30 minutes when you come in.

Tech that Matters

BOA H+i1 Closure: Single-pull system on the lower boot. Even pressure distribution across the forefoot and instep, infinite micro-adjustment, easy release. No fumbling with a low buckle in the cold.

Memory Fit Shell and Cuff: Atomic's Memolink additive makes the plastic itself heat-moldable. The shell can open up to 6mm in the forefoot and 10mm at the ankle. It's a permanent, anatomical fit — not a temporary pack-out.

Mimic Silver Liner: Heat-moldable in the heel and ankle zones. The 3D pre-molded heel and ankle design limits heel slippage before you even mold it. Fixed tongue cuts down on shin bang.

Energy Link and Energy Backbone: Atomic's connection system between cuff and shell, adding responsiveness to what is otherwise a comfort-focused boot. It's what keeps the 100 flex feeling like a ski boot and not a slipper.

Cantable GripWalk Sole: Better grip on hard surfaces than a standard alpine sole. The canting is adjustable at the sole. Bring your skis in so we can check binding compatibility — not all bindings work with GripWalk soles.

Why Willi's

We've been fitting ski boots in Pittsburgh for over 50 years, and boot fitting is what we do better than anyone in the area. We heat-mold liners, punch shells, adjust cant, and do custom footbeds — all in-house, at any of our three locations. Buy the boot here and we're behind you for the life of it.