When picking a trail, we always go for the one with max elevation, epic views, and year-round snow, so it makes sense we lace into the X Ultra 4 Mid Winter TS CSWP. The breathable insulation and furry lining block out icy temps, while the waterproof construction stops snow and slush from seeping in. This boot brings the agility of a running shoe while still stabilizing our stride for optimal performance as we power up and down wintry steeps.