Built for cold-weather performance, the SummitCore Merino Thermal Base Layer Shirt is crafted from premium 88% merino wool and 12% nylon for next-to-skin softness and enhanced durability.
- Interlock knit fabric delivers thermoregulation and odor resistance during extended wear
- Flatlock seams and offset shoulder panels reduce friction and bulk under jackets
- Body-contoured slim fit with wrapped side seams for a flattering, ergonomic cut
- Ideal for skiing, mountaineering, and winter hiking
- Rated among the thermal underwear men reviews as one of the most comfortable options available
If you’re looking for the best merino wool base layer for men, this shirt combines high-performance features with versatile style. It also provides tips on how to maintain merino wool base layers — just machine wash cold and lay flat to dry.
Benjamin Watson (verified owner) –
Perfect fit and keeps me warm without overheating. This is definitely the best merino wool base layer for men I’ve owned.
Tammy Fischer (verified owner) –
Bought this cheap merino wool base layer top for snowboarding and it held up great — breathable and surprisingly odor-resistant.
Matthew Hernandez (verified owner) –
I’ve tried several thermal underwear men options, but this one is the most comfortable under gear. Great for hikes in Missouri winters!