When you're getting after it in the outdoors during the shoulder seasons, make sure you bring long the Helly Hansen Men's Merino Light Button Long-Sleeve Top for temp-regulating, breathable comfort. Crafted entirely from merino wool, this classic baselayer keeps you moving in dry, fresh comfort thanks to the moisture-wicking, breathable, and odor-resistant attributes of merino wool. Plus, flatlock seams eliminate painful chafing that would otherwise cut your adventure short, and the stylish henley closure lets you wear this top on its own without garnering any strange looks.