Smartwool - Classic Thermal Merino Base Layer Crew - Femme dexshell When you're ready to run

When you're ready to run for miles

Use with Fiberlene paper for optimum efficiency

Quantum Two is supplied strapless so the strap can be selected across the TCS program for the best possible personal fit

It provides unparalleled support even in high impact activities like jumping and running

Smartwool - Classic Thermal Merino Base Layer Crew - Femme dexshell When you're ready to runIntroducing the new Merino Classic Women's Thermal Crew Base Layer. We've updated the fit of this popular 100% Merino wool layer to improve function and style, and now offer it in new colors. The addition of shoulder panels and flatlock seams prevent chafing for added comfort. Add one of our best cold weather base layers to your winter wardrobe and feel the difference the next time you're skiing, hiking, climbing or biking. 100% Merino Wool