evo.com | Atomic Alpine Touring Ski Boots > A hybrid boot that doesn't put at a disadvantage when the downhill gets gnarly isn't just a dream anymore. The Atomic Hawx Prime XTD 130 BOA Alpine Touring Ski Boots feature a stiff 130 flex and a true "alpine" feel due to the classic Polyurethane construction and solid Free/Lock 4.5 walk mode hardware, so much so that you'll be hard pressed to tell the difference when skied back-to-back with a regular Prime 130. The real difference is when the lifts stop short of your goal on a pow day . . . Cuff Polyurethane ISO 23223 GripWalk Sole Flex: 130 A very stiff flex for the hardest chargers and larger bodies Forward Lean 13deg, 15deg (default), or 17deg Free/Lock 4.5 Mechanism 54deg range of motion | Atomic Hawx Prime XTD 130 BOA Alpine Touring Ski Boots 2027 - 28.5 in Green