With long-lasting insect repellency, plus tech that keeps UV-rays and sweat at bay, this shirt has you covered the entire hike. The collar pops up for extra coverage at the neck. Everything You Need Omni-Shade(TM) Broad Spectrum UPF 50 protects against skin damage using select fibers and fabrics to block a wider range of UVA/UVB rays, so you stay safer in the sun Omni-Wick(TM) keeps you dry and cool by pulling moisture to the fabric&&';;s surface to evaporate, delivering fast-drying, next-to skin comfort in the heat Insect ShieldA(R) technology converts clothing into long-lasting, effective, and convenient insect protection Sun protection collar helps keep you protected Roll-up sleeves with snap-button tab holders for versatility Interior pocket for secure storage Mesh venting on sleeve Snap closures on front and cuffs Chest pockets with hook-and-loop closures for securing small items Locker loop for hanging gear Mesh venting on back yoke Center Back Length: 27.5 in / 69.9 cm Uses: Hiking Shell: 100% nylon