A reliable go-to layer for everyday comfort and active days outside, the 200 Oasis Long Sleeve Half Zip features a technically capable yet flattering silhouette with the benefits of 100% merino wool. Made with our most versatile merino jersey fabric, the Oasis provides super-soft, next-to-skin comfort, incredible breathability and natural odor resistance. With the addition of a classic zip-neck design, this top allows you to make quick temperature adjustments when you’re on the move. The updated design features underarm gussets and set-in sleeves for added mobility, and offset shoulder seams and flatlock stitching throughout prevent chafing across the spectrum of daily motion.