New in box, new with tags Men's size XXL A soft, stretchy sleeveless top for active layering and everyday comfort, the slim-fit Anatomica Tank features ultralight 150gm merino wool corespun fabric. Merino Corespun - durable merino blend regulates body temperature in all weather conditions Slim Fit - A snug, close-to-body fit for low-bulk layering 83% Merino Wool/ 12% Nylon/ 5% Elastane From Icebreaker website: The Anatomicais a lightweight next-to-skin layer. It’s crafted from 150gm merino jersey corespun fabric that’s lighter than most other fabrics we use, and is made with a snug, slim fit that works perfectly as a cozy piece beneath your other layers. Our Anatomica tees fit tighter than other tees in our range and generally have a wider neck opening, just size up if you like a looser fit. With Corespun we wrap our superfine merino fiber around a nylon core to create a durable fabric that retains icebreaker’s signature softness, odour resistance and performance.