Designed for the coldest days, this midweight base layer top combines premium merino wool base layer comfort with Helly Hansen’s innovative LIFA® Stay Warm technology. Ideal for multisport adventures and active winter pursuits, it offers high breathability and moisture management without compromising on thermal insulation.
- Two-layer fabric fuses cozy merino with moisture-wicking polypropylene
- Flatlock seams reduce chafing and improve mobility
- Excellent for skiing, hiking, snowboarding, or layering for urban winters
Unsure how to maintain your merino wool base layer? Machine wash gently and lay flat to dry—it’s built to last.
Crystal Daniel (verified owner) –
Absolutely love this thermal layer. It kept me warm and dry all day on the slopes—clearly the best merino wool base layer for men I’ve tried.
Beth Bell (verified owner) –
Perfect fit and feels lightweight yet insulating. Great buy for anyone looking to buy midweight thermal underwear for men.
Kathy Mitchell (verified owner) –
The dual-layer design really stands out. Breathes well, feels soft, and performs better than expected for cold Midwest mornings.