We´ve made this sleeveless top to actually cool you more than not wearing a top at all.It works because it will spread out sweat over a wider area to aid in evaporative cooling.Of course, it´s not going to make your indoor sessions sweat-free, but it will make them more comfortable.It´s intentionally simple and is cut close to body, and there´s a zippered pocket on the back.We finish it with the HEIQ Fresh Tech natural odor-control treatment that prevents buildup of odor in the garment over time.Espeficitations:3D Mesh lightweight 93% polyester / 7% elastane wicks moisture and dries quickly.HEIQ Fresh Tech silver-free odor-control treatment.Semi-open mesh allows maximum airflow and cooling.Rear pocket.