Mountain Hardware Summer Rib Tank Womens Size Small A backpacking MVP, the Sumer Rib™ Tank features a rib-knit, UPF 40 fabric that wicks sweat and resists odor on long outings under the sun. Designed with forward shoulder seams that work seamlessly with pack straps, it provides chafe-free milage for you to comfortably explore the great outdoors. Uses: Backpacking, Camping, Hiking, Rock Climbing, Superlight Backcountry Rib texture UPF 40 fabric filters harsh UV rays Anti odor Moisture wicking Racerback MHW patch logo at bottom left hem