The Hawx Ultra XTD boot combines our best alpine and touring technology – and this liner is a big part of that. It has pre-shaped thermoformable heel and ankle areas for a snug anatomical fit and the great foot hold for skiing. It’s also Memory Fit compatible. Then for touring it’s breathable (and washable) with soft flexible zones in the cuff to make walking easy. It’s also unbelievably light – a size 26.5 is even 150g lighter than an Atomic Platinum Hawx Ultra liner.