Made from recycled polyester with FlashDry, the Summer LT T-Shirt helps regulate your moisture levels and body temperature on summer hikes. It's incredibly lightweight - and the slightly elongated sleeves and integrated on-seam vents up the ante on comfort and sun protection. And engineered with LIGHTRANGE - a UPF performance fabric that provides UV defence without weighing you down - you can head out all day knowing you'll be shielded from the sun.