The Mountain Hardwear Women's Canyon AC LS Shirt is a long sleeve hiking shirt for Upper body breathable comfort on the trails. Summer sun, no problem, the nylon/polyester fabric offers sun protection while also wicking moisture from the skin. You'll stay cool and comfortable as it dries quickly, even while wearing a pack. Jumping off the trail for an evening on the town? The collar keeps things casual while the wrinkle-resistant fabric won't leave you looking like a slob. Features of the Mountain Hardwear Women's Canyon AC Long Sleeve Shirt Back venting detail Zip security pocket Roll up sleeve w/ button Unique perforation patterns to deliver optimal airflow where you need it most