Women's Smartwool Classic Thermal Merino Mock Neck Sports Bras It’s the first Altra shoe

It’s the first Altra shoe with Altra EGO™ P35 midsole foam

This lively trainer has been fine-tuned for extra energy return with a super critical foam midsole and updated for enhanced durability with strategic rubber coverage in the outsole

Finetuned for demanding endurance races and runners

for powerful propulsion at every stride

That combination makes for a lively and efficient ride from start to finish

Women's Smartwool Classic Thermal Merino Mock Neck Sports Bras It’s the first Altra shoeMeet the Women's Classic Thermal Merino Mock Neck. This 100% Merino wool fan favorite combines the moisture management, temperature regulation, and odor resistance of Merino with the comfort of an interlock knit. Its flatlock seam construction helps prevent chafing, and the regular fit helps give you room to move without additional bulk. Add one of our best cold weather base layers to your winter wardrobe and experience the difference the next time