The Men's Patagonia Triolet Pant is a three-layer GORE-TEX pant for waterproof, windproof, and breathable protection in the mountains. The articulated pattern and gusseted crotch offer enhanced mobility and comfort, especially when worn under a harness. The separating waist includes a two-snap closure, zip fly, belt loops, and interior adjustable elastic tabs for a personalized fit. Full-separating side zips with two-way waterproof zippers are secured with snap tabs at the waist and cuffs. The pants include two waterproof welt handwarmer pockets and a double-cuff system with a durable scuff guard, internal gaiter, gripper elastic, hook-and-loop closure, snap fastener, and tie-down loops for secure integration with boots.