The coolest performing stretch-woven shirt in your kit, slip into the new Stone Cold LS Shirt that wears like a breath of fresh air and now comes equipped with a side-entry stash pocket for everyday essentials. Stretch woven nylon with brrr° Triple Chill Effect technology that provides cooling, wicking, and rapid drying for crucial warm weather performance Two zippered vertical chest pockets for easy access Vertical chest pockets are big enough to hold a large fly box Built-in, convenient sunglass chamois at the hem Sun protection brrr° Triple Chill Effect - Proven To Keep You Cooler UPF 50+ Fabric Tech: Main Body: 94% brrr° nylon, 6% elastane woven; 110 gsm Item #: PG-14122