The Smartwool Merino 150 Baselayer Tank is a women's activewear pullover with a high neckline and wide straps. Made of 88% Merino Wool and 12% Nylon, it is a lightweight, breathable, and moisture-wicking tank that provides UV protection. It is suitable for various activities such as yoga, hiking, running, and soccer. The tank is machine washable and has a medium fabric wash. It comes in blue and has a regular fit.