Smartwool Classic Thermal Merino Base Layer Bottom Men's Trail Runners Portable training rail goes anywhere

Portable training rail goes anywhere

helmet carry (52L and 38L only)

Thanks to the adjustable leg loops

mountainous terrain your playground with aggressive

with Active Temp™

Smartwool Classic Thermal Merino Base Layer Bottom Men's Trail Runners Portable training rail goes anywhereWe've updated our Men's Classic Thermal Merino Base Layer Bottom to bring you a better fitting, more functional tight. The technical benefits of 100% Merino wool will help you keep your game at a high level for longer. And our warmest weight wool fabric will help keep you warm and comfortable as you ski, run, and hike the day away. Features Slim Our slim fit is intended to follow the contours of the body Fabric helps combine the moisture management,