Smartwool Classic All-Season Long-Sleeve Merino Baselayer - Women's

It's almost impossible not to get sweaty when you're running from a pack of marmots that are hungry for your trail mix but the Women's Merino 150 Long-Sleeve Baselayer Top is just the ticket. Smartwool made it extra tough by combining its famous merino wool with a hint of synthetic and wove the 150 with a flattering cut and seams that won't cause discomfort when you're sprinting away from 30 fat and not-so-cuddly alpine rodents.