Stay cool and dry in warm-to-hot conditions in our stretchiest baselayer with 50+ UPF sun protection. Built for yoga, trail running, bouldering or simply letting the day slip away. Made from our stretchiest Capilene® performance baselayer fabric, this tank manages your temperature and moisture whenever you combine warm temperatures and high-output activities. Highly breathable and quick to dry, it stretches for superior mobility and features a self-fabric crewneck that's soft against your skin, flatlock seams that reduce chafe beneath pack straps and a tuckable length. Made of 4.6-oz 94% polyester/6% spandex jersey, with 50+ UPF sun protection and Polygiene® permanent odor control. Fabric is bluesign® approved.