For maximum comfort and cushioning we’ve employed an Ultralon Foam Heat-Moldable Liner with a Protective Outsole, allowing for a personalized fit that contours to your foot shape for the best fit and feel in the industry. This liner has become a top choice of pro skiers due to it’s fit and reinforced hingepoints, allowing for less wear & tear in those spots most likely to breakdown through extended use. In addition, we’ve added a Velcro ankle strap to keep your liners on your feet. The light weight yet reliable snow ski inspired boot buckles allow for personalized tightening. Use the buckle ladder to tighten or spin the buckle for a more customized fit. The Memory Buckle allows you to get a consistent tightness on the upper cuff every time you ski.