Light, wind-resistant pant for performance and comfort in hot weather. *The Gamma Lightweight Pant was previously the Gamma SL Pant. Trekking and hiking summers long days means more time to explore, and it means heat. Embrace it. Our lightest Gamma Pant is made for cool comfort and delivers the durability and freedom of movement you require in wild terrain. Lightweight Aequora AirPerm fabric delivers abrasion resistance, balances wind resistance with airflow, and has excellent stretch. The hems cinch to seal out trail debris, articulated knees and a gusseted crotch improve mobility, and three secure pockets stash maps, snacks, and digital tools.