WHAT IT IS / FEATURES PRODUCTUTop for indoor cycling, ready for Zwift, peloton or fitness. Keeps you cool and comfortable. Lightweight 3D mesh 93% polyester / 7% elastane wicks away moisture and dries quickly.HEIQ Fresh Tech treatment with silver for odor control.Semi-open mesh allows for maximum airflow and cooling.Back pocket.Color: 010 black, 421 burgundySizes: XS - XLWeight: 43g. (S) Material Composition:93%polyester 7%elastane We made this sleeveless top to actually keep you cooler than if you weren't wearing anything at all. It works because it disperses sweat over a larger area to aid cooling by evaporation. Of course, this won't make you sweat, but it will keep you more comfortable. It's deliberately simple and is cut close to the body and has a small pocket at the back. Finally, it's HEIQ Fresh Tech's natural anti-odor treatment prevents odors from building up in your clothing.