These are Gramicci climbing pants made of nylon. They feature a gusset that allows for 180-degree leg openings and an adjustable waist belt. I also have other shorts for sale, such as those from The North Face, Mount Rainier, and Wild Things, so please take a look. I'll offer a discount for combined purchases. How about them for bouldering, cycling, running, camping, or festivals? Also recommended for those who like Patagonia and Roark.