What Our Gearhead® Experts Are Saying:"I wear this on exposed hikes where sun protection is just as important as breathability. The UPF 50 coverage gives me peace of mind, and Omni-Wick™ keeps sweat under control when the climb gets steep. It feels light, dries quickly, and the active fit moves well without feeling restrictive. Solid choice for hot, high-output trail days."When the trail stretches into open alpine and the sun beats down, we rely on the Summit Valley Long-Sleeve Crew Shirt from Columbia to keep us protected and moving comfortably. Part of the Columbia Titanium collection, this high-performance layer is built for demanding hikes in exposed terrain where breathability and sun protection are non-negotiable. The lightweight blend of 56% recycled polyester and 44% polyester delivers durability and stretch in an active, body-skimming fit. Omni-Shade™ Broad Spectrum UPF 50 shields us from harmful UVA and UVB rays, while Omni-Wick™ technology pulls moisture to the surface for fast evaporation. The fabric also captures and neutralizes odor for lasting freshness on long miles. With enhanced breathability and a practical interior locker loop for easy hanging, this long-sleeve crew is made to handle hot, sunny treks from trailhead to summit.