Techwick(R) fabric turns this long-sleeve tee into a convenient garment for outdoor wear and layering. As the semi-fitted style sits close to the skin, the material moves away perspiration and maintains breathability, so you ultimately remain dry. From hikes and climbs to trail runs and afternoons at the gym, toss this on with a lightweight pullover or hoodie for comfortable coverage.. . Made out of 100% polyester knit jersey Techwick