"What Our Gearhead® Experts Are Saying:""I picked this up for a young hiker in my family for a summer trip and the UPF 40+ protection gave me real peace of mind on long sunny days. The fabric dried almost instantly after a splash in the creek and never once seemed to slow them down.""Toddlers do not take breaks, and their gear should not either. The Patagonia Baby Capilene Silkweight T-Shirt is built to keep up with the full range of warm-weather energy, from sandy beaches to shady trails to backyard sprinklers. Capilene Silkweight fabric made from recycled polyester and spandex wicks moisture and dries fast so little ones stay comfortable through the kind of sustained activity that soaks through lesser fabrics in minutes. UPF 40+ protection shields young skin from the sun without requiring sunscreen alone to carry the load. Flat-seam construction eliminates chafe points that can turn a great day outside into a complaint session, and underarm gussets with forward-shoulder seams give full freedom of movement for climbing, running, and everything in between. At just 1. 8 ounces, the tee layers easily under a sun hoodie or a fleece when temperatures shift, and Fair Trade Certified construction means every piece is made with the same care and intention as the adventures it is built for."