The Marmot Men's Aerobora Short Sleeve Shirt is lightweight, breathable, and packable. It's unique AirExchange fabric construction and technology provides advanced air permeability and enhanced drying time, so you stay cool all day. The UPF 25 rating and stretch construction will keep you comfortable and protected when you need it most. Moisture-wicking, quick-drying polyester ensures intense treks won't weigh you down. Go off-road for a quick hike and head back into town with confidence in the Marmot Men's Aerobora Short Sleeve Shirt.