Smartwool Active Mesh Racerback Tank – Women's 75-100 the Cirrus Alpine is our

the Cirrus Alpine is our pick for women who need a packable insulator that pulls double duty as a midlayer or standalone piece

Supercritical EVA midsole — lighter than standard foam with better energy return underfoot

Built from recycled heathered fabric with a half-zip stand-up collar

The 1/4 zip lets you dump heat fast when the climb gets steep

the On Mountain Tight handles everything from trail days to school recess without slowing them down

Smartwool Active Mesh Racerback Tank – Women's 75-100 the Cirrus Alpine is ourFor high output runs and trail days when the heat and humidity are relentless, the Active Mesh Racerback is our go to tank for women who want breathability without going full synthetic. The merino blend regulates temperature and fights odor far better than polyester, while open mesh panels push heat out fast. The racerback cut keeps your shoulders completely free. Merino wool blend regulates body temperature and resists odor a real advantage on long