On Tank-T Men's Running Apparel Malibu/Navy : Whether its race day or arm day, the On Tank-T for Men is the top you need to get your through your next sweat sesh. This tank offers a barely-there feel from an ultra-lightweight Japanese light knit material. This quick-drying fabric is treated with an anti-bacterial technology to ensure it stays free of odor-causing bacteria. Reflective On logo featured at left chest. Japanese, light knit mesh fabric is breathable and helps control moisture build up. Features anti-bacterial treatment within the yarn.