Durability you can trust with advanced cooling technology. Powered by Polartec® Delta™ fabric, the Defend Delta™ Long Sleeve jersey regulates dry times and allows better breathability when wet. It's like wearing a mountain bike jersey with a built-in radiator, and it keeps you cooler. The cooling tech is combined with strategically placed abrasion-resistant zones for coverage from trail overgrowth. FEATURES Polartec® Delta™ fabric increases airflow, reduce friction, & dissipate heat Cordura™ knit sleeves are soft & flexible with exceptional abrasion resistance Bonded neck construction for added comfort Length (HPS): 32" size large FABRIC 89% nylon / 11% spandex