The MerinoFine™ Ace Long Sleeve Tee is icebreaker’s go-to lightweight performance tee made with 100% superfine merino fibres. Naturally breathable and odour-resistant, the Ace Tee also features offset flatlock seams to enhance the fit and reduce chafing. A hidden underarm seamless gusset improves range of motion and comfort during intense movement. Inspired by nature, icebreaker harnesses the performance qualities of natural fibres to offer an alternative to clothing based on petrochemical synthetics. Merino wool is an annually renewable fibre that naturally resists odours, keeps you cool when it’s hot and warm when it’s not, and lets your skin breathe for comfort all day, every day.