What Our Gearhead(R) Experts Are Saying: "I grab this tank for big summer days because it breathes incredibly well and never clings, even when I'm sweaty or wearing a pack. The UPF 50 coverage is a lifesaver on exposed trails, and the hidden zip pocket is perfect for a key or gel when I'm running light. It's become one of my favorite warm-weather layers." We love the AirExchange SolarShield High Neck Tank for the way it keeps us cool, covered, and comfortable when the heat is relentless. Marmot's AirExchange fabric is engineered to move air freely and dry fast, giving us the freedom to push for more miles, more vert, and more time outside without overheating. With UPF 50 sun protection woven in, this tank performs when outer layers come off and the sun is high overhead. Dropped shoulder seams and abrasion-resistant construction sit comfortably under pack straps or a climbing harness, letting us move naturally whether we're racking gear or working toward the summit. A hidden zip-secure pocket keeps lip balm, snacks, or a key close at hand-even when we're fully buckled in. From dusty approaches to river days and exposed ridgelines, this airy tank keeps us cool and confident from first light to last.