Men's Smartwool Merino Base Layer Crew - SW016349-P15 Safety & Visibility 360 reflectivity and a side

360 reflectivity and a side zipper pocket for all your needs

And personalized daily suggested workouts helped you do something you've never done

- Heel extension maximizes landing space with every step and provides extra durability for feet on the move

Perfect for travel and on-the-go

A perforated heel helps reduce the weight

Men's Smartwool Merino Base Layer Crew - SW016349-P15 Safety & Visibility 360 reflectivity and a sideMeet the better than ever Men's Classic Thermal Merino Base Layer Crew. Smartwool updated this 100% Merino wool fan favorite with new colors and a new fit to improve functionality while enhancing aesthetics. Shoulder panels eliminate top shoulder seams, and a flatlock seam construction helps prevent chafing.