Men's Ski Boot Best Fits a Narrow Forefoot and Standard Calf Volume Prolite- Reinforcements in key zones for added strength and stiffness. Energy Backbone- A rear spine for added strength and power transmission. Power Shift- Allows the boots forward lean to be adjusted back 2 degrees or forward 2 degrees as well as the flex index by 10 points. Memory Fit- Allows for the shell, cuff and liner to be heat molded. Mimic Gold 3M Thinsulate Liners- Asymmetric tongue, toe box and collar for comfortable and precise fit. GripWalk Soles- Better traction on uncertain surfaces. This Boot is Only Compatible with Bindings Stamped GripWalk (GW) or Multi Norm Certified (MNC) The Atomic Hawx Ultra 110 S GW is an awesome option for advanced to expert level skiers with a narrow forefoot and standard calf volume. Prolite construction combined with the Energy Backbone supports the shell and the cuff for added burliness and strength when you want to drive the most power you can into the boots. GripWalk Soles provide you with a boot like tread for certainty that you won't slip on icy surfaces, ensuring you'll make it back to your favorite resort bar at the end of a long day. Memory fit puts customization to the test with heat moldability for a custom fit to your foot and the Thinsulate liners will help keep your toes and feet toasty warm for the coldest mountain days. Get your foot into a boot that will keep you on the slopes longer with the Hawx Ultra 110 S GW from Atomic. Atomic Men's Hawx Ultra 110 S GW Ski Boot