Lightweight Repreve polyester blend is 100% recycled from plastic bottles with soft, breathable, and moisture-wicking performance and comfort Lightweight, breathable, and wicking knit keeps you cool and comfortable in the heat Ultraviolet protection factor (UPF) of 50 gives you protection during extended periods under the sun Raglan sleeves maximize your range of motion for high-performance comfort with a classic vintage touch Marmot crafts professional quality outdoor gear, born from working mountain guides and instructors. Inspired by the Alpinist spirit of adventure to search and achieve in a harsh world, our products are simple, appropriate, dependable and good looking.