The men's Hot Chillys Clima-Tek Zip-T delivers top-of-the-line performance for outdoor activities. Its Clima-Tek fabric offers the comfort of cotton with the durability needed for demanding adventure. The four-way stretch construction guarantees unrestricted movement, while the activated carbon technology enhances thermal regulation and controls odors. Moisture Transfer Fibers work to keep the skin dry, and the breathable fabric ensures comfort across varying conditions. It also offers UPF 30 protection to limit UV exposure, and the spun polyester fabric gives an exceptionally soft feel against the skin.