Description When you need a lightweight layer to stay comfortable on cool summer mornings, grab our Merino Sport 150 Long Sleeve and get going. Using Merino Sport 150 fabric and mesh in all the right areas, this product will help keep your body temperature regulated and you feeling comfortable no matter what you're doing. Features Fabric combines the moisture management, temperature regulation, and odor resistance of Merino with the durability and quick dry time of polyester Flatlock seam construction designed to minimize chafing Mesh in key areas designed to increase breathability and comfort during strenuous activities Twisted knot at front hem Main Body: 56% Merino Wool, 44% Polyester; Trim: 54% Merino Wool, 46% Polyester; Exclusive of decoration Style: SW015137 Care Machine wash cold gentle cycle. Wash with like colors. Do not bleach. Tumble dry low. Cool iron as needed. Do not iron decoration. Do not dry clean.