The Arc’teryx Gamma SL Pants (Men’s) are lightweight, technical softshell trousers engineered for fast-moving outdoor activities where mobility, breathability, and weather resistance matter more than full waterproof protection. These pants sit at the lighter end of the Gamma softshell family and are designed to be a go-to choice for trail running, fast hiking, alpine approaches, and travel in cool to mild conditions. Their pared-down construction emphasizes freedom of movement and minimal bulk while still providing reliable resistance to wind and light moisture. Constructed from Fortius™ Air 10 softshell fabric, the Gamma SL Pants balance a soft, breathable feel with mechanical stretch that supports dynamic motion. Compared with heavier softshells, the Fortius Air 10 material is lighter and more ventilated, helping regulate temperature during higher-output activity. A DWR (durable water-repellent) finish sheds light precipitation, and the fabric sheds wind efficiently without feeling stiff or restrictive, helping keep you comfortable on exposed ridgelines or vigorous ascents. The cut is tailored for active performance. Articulated knees and a gusseted crotch improve range of motion for climbing over boulders, scrambling up steep trails, or moving quickly on uneven terrain. The waistband features a low-profile, secure closure that stays comfortable under a pack, and zippered hand pockets offer secure storage without interfering with movement. Because they prioritize breathability and low weight, the Gamma SL Pants are particularly well suited to warm-weather pursuits and fast-paced outings where other softshells might feel too warm or bulky.

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