Whether you're cranking at the boulders or skinning up a backcountry run, those first rays of warming spring sunshine after a long winter are something special. While you're soaking up that Vitamin D, the Crater Lake(TM) Long Sleeve Crew has you protected from unwanted UV rays thanks to its UPF 50+ fabric. This lightweight and comfortable top also pulls double duty as a breathable baselayer when the clouds roll in and it's time to layer up.Uses: Superlight Backcountry, Rock Climbing, Backpacking / Hiking, CampingUPF 50 solar knit wicks moisture and dries quicklyRaglan sleeves for mobilityThumbhole cuffs for added protectionMHW logo at front left chestNut Logo at back rightSolar knit jersey88% Polyester, 12% Elastane