Fortunately, we’ve got an easy trick to tell which merino wool base layer is right for you. Merino wool base layers, also known as thermal underwear or long underwear, come in various weights ...

As someone who loves the winter, I’ve had my fair share of borderline-frostbitten toes, but ever since I discovered the merino wool base layer, I’ve been able to stay out longer than ever.

The fabric is a vegan-friendly alternative to the Merino wool that you find in many of the best base layers, and Finisterre promises it's equally high-performing, as well as retaining its shape ...

Staying cozy throughout the ski day (and into the après hours) can be hard work, but Artilect’s Flatiron base layer bottoms do the trick and then some. These use a new type of merino wool material ...