Flannels aren’t going anywhere anytime soon and Under Armour has taken note. The women’s specific UA Primo Flannel is a functional, water repellent piece that gives the one you bought in ’89 a run for its money. Made from 100 percent polyester, the Primo won’t wear quickly when you put it to the test in the roughest of elements. The poly flannel is quick dry, so you won’t look like you just got back from the gym when you hit the town after the hill. This flannel should be at the top of your base layer list for this coming season.