This lightweight, waterproof boot has been built for maximum stealth and agility by using a moulded fabric upper on a quiet and flexible sole. It's the ideal boot for long distance flats, hilly terrain, bushland/grasslands and forrest. The Ascent also features the ATOP rapid fastening system to provide you with: Less chance to trip than you encounter with traditional laces Quick lacing for faster get up and go Quick release from boot when required Equally distributed front tension, for a more comfortable fit All sizes are US. PRO-TIP: Wearing gaiters over your boots will prevent them from getting wet in long grass, this makes sure water doesn't enter the top of the boot and leak inside the insulation.