2084621 Mountain Hardwear Women's Butter Up Half Zip This perfect moisture-wicking base layer is buttery soft, allowing you to move effortlessly through any environment without chafing or overheating. A versatile do-it-all stretch top, the Butter ½ Zip fights odor so you can wear it on repeat before it hits the wash. Featuring a center front half-zip for easy venting and low-profile thumb holes, it is a must-have for long days on the trail or all-day travel. Slim Fit UPF 50 fabric filters harsh UV rays Anti odor and moisture wicking properties Half zip for easy venting and on/off Low profile thumbholes Fit to be great for layering MHW heat tranfer logo at left cuff Fabric Brushed Jersey Knit 85% Polyester / 15% Elastane Product Care Refer to care label for specialized instructions