Sunna Crew - Short Sleeve - Women'sHigh mileage isn't just your route plan, it's how much you'll wear this technical tee. Built for strenuous hikes above treeline, the stretchy, UPF 50+ fabric protects your skin when you're exposed on alpine ridges and moves moisture away from the body on steep scrambles and traverses. A pack compatible length means no danger of a sunburned back at the end of the day.