During long runs or active days under the sun, the Boys's Capilene 2 Lightweight T-Shirt from Patagonia offers cool breeze comfort. This shirt is fashioned in Capilene 2 that features an open knit that encourages airflow to keep you cool and provides excellent wicking and exceptional breathability to keep you dry. Also isolative enough for chilly days when winter hasn't quite released its grip, it's the fastest-drying of our performance baselayer fabrics. With a classic neck and elbow-length sleeves that stay put. Raglan-Design sleeves and flat-ribbed underarm panels merge out of the way of straps to eliminate chafe. Made from 4-oz 100% polyester (54% recycled) with Gladiodor natural odor control for the garment. The Boys's Capilene 2 Lightweight T-Shirt is recyclable through the Common Threads Recycling Program.