This lightweight T-shirt is made with Deltapeak™, a recycled polyester jersey fabric. The material combines comfort with high-level breathability to keep your kids cool and fresh as they climb, hike, run, meet up with friends and make the most of summer. Quick-drying Deltapeak™ technology also prevents sweat buildup in high temperatures. With a rating of UPF 30+, your mini explorers are protected from harmful UV rays. And the fabric’s high-density construction provides optimum snag resistance when worn under a backpack or while bouldering or adventuring outside. The Deltapeak T-shirt for kids delivers breathable comfort for any summer outing.