Crafted from ultrafine 185g merino wool, this men’s tall merino wool base layer buy online offers unmatched softness without itchiness. Made with 100% natural fibers, it breathes effortlessly, wicks moisture, dries fast, and naturally resists odors—making it the best merino wool base layer for men on extended trips.
- Half zip base layer design with a stand-up collar and chin guard for easy venting and protection
- UPF 30 sun protection to shield you during outdoor activities
- Flat seams and merrow stitch construction prevent chafing, while underarm gussets ensure full freedom of movement
- Snug fit to optimize layering and moisture management
- Back length: 30 inches; Weight: 9 oz
Machine wash warm on a gentle cycle with wool detergent; avoid twisting or wringing. Remove promptly and tumble dry low. Dry cleaning is not recommended. This base layer excels both as a standalone top or a thermal layer under your gear during hiking, skiing, cycling, and more.
Produced in a Fair Trade Certified™ factory, this affordable thermal merino base layer top supports sustainable manufacturing and climate-conscious initiatives by the REI Co-op brand.
Julie Henderson (verified owner) –
I’ve tried several merino wool base layers, and this is hands down the best merino wool base layer for men I’ve owned. It stays fresh even after multiple days on the trail.
Claudia Lyons (verified owner) –
The half zip merino base layer reviews were spot on—lightweight, breathable, and perfect for layering. Plus, the fit for tall men is just right.
Curtis Thomas (verified owner) –
Affordable thermal merino base layer top that doesn’t compromise on quality. I wear it skiing and hiking, and it keeps me warm without overheating.