Smartwool Classic Thermal Merino Base Layer 1/4 Zip – Women's Size:XS UPF 50+ double-weave ripstop Supplex

UPF 50+ double-weave ripstop Supplex nylon blocks UV at the source

keeping your feet comfortable in and around water

Oboz's B-Dry waterproof membrane keeps water out while the A3 Chassis with integrated shanks delivers real stability underfoot

icy surfaces with confidence

Back-of-body zip pocket keeps your phone and keys secure and out of the way

Smartwool Classic Thermal Merino Base Layer 1/4 Zip – Women's Size:XS UPF 50+ double-weave ripstop SupplexBuilt for cold weather trail runs and winter mountain days, this slim fit quarter zip is our pick for women who need a reliable merino base layer. Pure 100% merino wool regulates temperature and resists odor naturally, so you stay comfortable whether you're climbing or cooling down. The quarter zip mock neck lets you dial in ventilation on the move. 100% merino wool construction naturally regulates body temperature and wicks moisture in cold, variable