Men's AirExchange UPF 50 Crew Long-Sleeve CrewWhether youre stepping out the door for a day hike, climbing session, or backcountry excursion, throwing on this baselayer should be your first step. AirExchange performance fabric is breathable and quick drying, keeping you in your comfort zone as you power forward. When the sun pops out and outer layers come off, UPF 50 protection keeps you safe from blazing rays. Dropped shoulders and abrasion resistant seams keep you comfy, agile, and chafe free
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