Merino Long Sleeve Base Layer - Men's

What Our Gearhead® Experts Are Saying:

"I've used this base layer for training rides swinging from near freezing to the mid-fifties. The merino wool breathes well on climbs and still holds warmth on fast descents. It layers cleanly under my jersey without adding bulk under a bib strap."

We built the Merino Long Sleeve Base Layer to work as hard as the ride demands. A 78% merino wool blend forms the foundation, doing the work of thermoregulation across shifting conditions, while 14% recycled nylon adds structure and long-term durability to a fabric that's otherwise soft against the skin. The remaining 8% elastane brings the fit close to the body, which matters most under a jersey or jacket where excess fabric only gets in the way.

That close fit isn't just about comfort. It keeps the base layer compatible with the full range of jerseys and jackets in rotation, from a lightweight spring kit to a heavier winter shell, without bunching or shifting as you move through climbs and descents. Merino's natural moisture management and odor resistance round it out, making this the layer you reach for whether the ride is two hours or a full day in the saddle.