You know you're in the right place for Patagonia's Boys's Sandstone Crew when the fish tacos are served off a banana leaf. This lightweight shirt blends fPatagonia's fibers (35% organic cotton/29% all-recycled polyester/27% Tencel/9% spandex) to create a highly breathable fabric with an easy drape and soft texture. Bottom line: a laid-back feel with technical benefits that complement a full range of motion. The flat-seam construction and raglan sleeves provide a smooth alliance with loaded pack straps, and a rib-knit collar rests lightly on the skin. Wear the Sandstone as an outer layer in warm weather or under a jacket or shell. Recyclable through the Common Threads Recycling Program.