The men’s MERINO SPORT 150 Logo Tee by Smartwool features a roomier relaxed fit, perfect for breathable performance while out on summer trails. It’s made of Smartwool’s signature merino wool-poly weave. This weave provides all the benefits of merino – anti-odor, moisture-wicking, breathable – with the strength of polyester. Offset side and shoulder seams along with flatlock seam construction ensure the best feel and fit with your backpack. Hike, run, and climb in T-shirt comfort designed for the outdoors.