The ArcUteryx LEAF MenUs Cold WX T-Shirt AR Wool is a durable, mission-ready base layer built for cold weather operations where sweat, odor, and temperature swings are part of the job. Made with a nylon-core spun merino wool blend, it retains warmth even when damp and soothes skin with natural wool while resisting odor during long shifts. The athletic fit allows it to layer comfortably under tactical gear without bunching, and gusseted armpits let you move freely when drawing, climbing, or reaching. If youUre looking for one shirt you can depend on during tasking, patrols, surveillance, or winter duty, this shirt delivers under pressure.