Merino wool fibers are the perfect all natural solution forkeeping you comfortable when working up a sweat in cool weather. Wool is soft,breathable, regulates temperature and its antimicrobial properties controlodor. The Icebreaker Women's Long Sleeve BodyFit 200 Oasis Crew leverages wool'sbeneficial properties, along with smart design details, to optimize yourcomfort during cool weather activities. Flatlock seams eliminate chafing andoffset shoulder seams allow room for backpack straps to lay flat on fabricrather than causing uncomfortable seam rubbing. The crew neck and slim fitallow for easy layering and the drop tail hem provides extra rear coverage fora worry free fit.