Arc'teryx Alpha SL Pant is developed for demanding routes where weight must be kept low without sacrificing protection. The garment combines GORE-TEX PRO ePE with an ultralight 20D Hadron™ face fabric, providing excellent breathability and reliable waterproofing in changeable mountain weather.

Full-length side zips allow the trousers to be put on and taken off without removing alpine boots or crampons, enabling quick adjustment when conditions change. The robust design makes the trousers well suited to everything from snowfields to steep ice. Reinforced lower hems and a durable coating around the lower leg protect against sharp edges, crampons and general wear.

An adjustable waist provides a secure fit and remains comfortable even when worn under a climbing harness. A RECCO® reflector is integrated for increased safety in emergency situations, and boot hooks keep the trousers in place.

Alpha SL Pant is made with materials that meet bluesign® requirements and features PFAS-free treatments, including an FC0 DWR finish that repels moisture. Light enough to carry in the pack at all times.