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.