Merino wool is a pretty magical fabric ... that these colorways have an added ‘On-of-a-Kind Plant-Based Dye’ logo that runs on the hem, which can be a turn-off for some folks.

the Smartwool Merino 150 base layer uses Merino wool – a material that's often used for outdoor apparel, being breathable yet warm, and naturally antibacterial. It's no surprise this fabric ...