The OPS Tac T-Shirt is designed for comfort, especially in hot weather conditions. It is constructed from drirelease fabric for superior wicking, fast drying capabilities that pull moisture and perspiration away from the skin for improved evaporation. The polyester cotton blend dries 4x faster than cotton and regulates skin temperature, providing up to a 7 degrees cooler body than other fiber treatments. An environmentally friendly FreshGuard treatment provides a built in odor neutralizing system. The drirelease performance will not wash out or wear out over time, making the shirt virtually worry free.