Icebreaker's ANATOMICA Men's Tank Top offers versatile, breathable comfort in a soft, stretchy, and durable merino wool blend. Corespun fabric wraps strong nylon in merino fibers, upping this top's durability compared to other wool garments. Merino is left next to your skin, providing the best feel. Lycra stretch fabric enhances effortless stretch and movement with your body. Flatlock seams eliminate chafing.