The Atomic Hawx Ultra XTD 110 BOA GW Alpine Touring Ski Boots combine a versatile 110 flex rating, making them an excellent choice for skiers who prefer a lighter and less aggressive style while needing boots that can handle both lift skiing and touring. These boots feature a flexible True Flex PU shell and an innovative lower closure system using the Boa Fit System, providing exceptional comfort for those with narrower feet and ankles. The XTD 110 Boa stands out as one of the most comfortable options available on the market. 98mm Narrow Last: Legendary Hawx Feel, ths highly anatomical 98mm last delivers comfort, performance and warmth Memory Fit: Advanced heat-fitting technology creates a fully personalized shell, cuff and liner in minutes Maximum Versatility: Free/Lock 4.5 ski/walk mechanism in combination with Frictionless Pivot allow for 54Degree of cuff rotation for natural and efficient mobility. Full rubber GripWalk sole provides traction and compatibility across a wide range of alpine and touring bindings. All Mountain Performance: The updated Prolite construction makes this boot 25% more stable by adding reinforcement in critical zones of the lower shell and upper cuff while True Flex PU plastics keep the flex progressive and smooth. Boa Fit System Alpine: A completely new BOA system designed for the stresses of alpine an freeride skiing