Exploring a new trail close to home, or one that's far, far away, this REI solid long-sleeve shirt keeps you cool and comfy with wicking, quick-drying fabric, underarm vents and a vented back. Sleeves can be rolled up and secured with button tabs Wicking, quick-drying fabric Packable Wrinkle-resistant UPF 30 sun protection Vented back yoke helps you stay cool Underarm vents keep you cool and dry Seams are placed off of the tops of the shoulders to prevent abrasion under pack straps Hook and loop closure on pockets Pocket sunglass loop Locker loop lets you hang the shirt to dry Rounded, vented hem Small pocket on left bicep This shirt meets the bluesign® material and manufacturing criteria Shell: 100% nylon Mesh: 100% polyester Machine wash, tumble dry In excellent used condition. No stains, seam issues, pulls, pilling or odors. The color was also offered in a woman's shirt, but this is sized and constructed for men. Athletic, sporty, gorpcore, utility, practical, hiking, camping, outdoor, walking, trail, athleisure, lounge, cruise wear, vacation, travel, sightseeing, excursion, resort wear, sustainable, eco-friendly, sun protection, Earth friendly