The Atomic Ultra XTD 130 is the narrowest of the Hawx line providing the most precise fit at 98 mm. Maybe you’re thinking about switching out of your race boots into something that you're able to tour in, or you want a lightweight compliment that will descend really, really well. In order to enjoy a day out in the backcountry your feet need to feel good, the Hawx Ultra XTD 130 is no different sharing the same shell mold as the Ultra 130.