DetailsLouis Garneau Women's Standard Fit Apparel Size Chart Engineered to boost your performances on race day, the Women’s Tri Elite Course Sleeveless top is a lightweight summer choice with heavyweight features. The top is optimized for summer wear and features innovative Coldblack® technology, which efficiently dispels the heat that builds up as a result of UV rays. The treatment is so effective it even works on dark-colored gear. The fabrics also provide protection from the sun up to UPF/SPF 50 and wick moisture away from the skin to keep you cool and dry. Built from a single piece of material, the top features minimal seams for enhanced aerodynamics and reduced irritation of the skin. The armholes and neck are designed to offer a full range of motion, while the front zip features a ‘garage’ enclosure at the throat and internal comfort trim to prevent chafing. A reflective accent on the back is a safety feature that will help keep you safe and seen in low-light conditions.