Made from a drirelease fabric, the Horizon Tee combines the comfort of cotton with the weightless, quick-dry properties of polyester. The result is a sophisticated tee that's soft and wicking; durable and whisper light. The Horizon Tee dries 4x faster than cotton thanks to drirelease. Its exclusive blend of hydrophobic and hydrophilic fibers accelerates the wicking of moisture, swiftly pulling sweat away from your skin through the fabric and into the air. In great, used condition. I'm parting with it because it runs a little small, so please check the measurements in the photos.