What Our Gearhead(R) Experts Are Saying:"I picked this up for a new baby in my family for a summer trip and the UPF 40+ coverage meant one less thing to worry about on sunny days outside. The fabric dried almost instantly after water play and the flat seams kept things comfortable against sensitive skin all day long."Getting infants outside in warm weather means finding sun protection that works without adding discomfort to the equation. The Patagonia Baby Long-Sleeve Capilene Silkweight T-Shirt builds UPF 40+ protection directly into a 2. 3-ounce recycled polyester and spandex blend that feels featherlight and gentle against sensitive infant skin from the very first wear. Moisture-wicking construction pulls sweat and splash away quickly so little ones stay dry and comfortable through stroller rides, yard time, and first water adventures alike. Flat-seam construction eliminates irritation points that can make sensitive skin miserable over a long day, and the stretchy design moves with every kick and wiggle without restriction. A drop-tail hem adds a bit of extra coverage at the back for active infants on the move, and Fair Trade Certified construction ensures every detail of the garment reflects the care that parents bring to every decision about what goes on their baby's skin.