A great utility baselayer for cool days in the backcountry this Men's El Cap Shirt from The North Face has a soft and lightweight VaporWick El Cap pique fabric that's treated with an antimicrobial finish for odor control and rated with a Ultraviolet Protection Factor (UPF) of 30+ for sun protection. It's an ideal pullover for climbers and backpackers who need lightweight warmth with extra wicking potential. On the front you'll find a deep zipper that allows for extra venting after the sun comes up.