This Gamma Lightweight Pant from Arc'teryx is the replacement for the former Gamma SL Pant and is their lightest weight and most breathable softshell pant in the Gamma series. Perfect as the next thing to throw on when wearing shorts just isn't enough. These pants are made from a lightweight stretch woven nylon blend fabric. Great for slightly cool approach hikes and an excellent choice for many mid-summer glacier mountaineering outings like trips on Mt Rainier. The simple leg design fits over most 3-season mountaineering boots and is also perfect for rolling up to just below your knees like mountain knickers to help with temperature control.