Our award-winning base layers have been keeping people comfortable outside for decades. The Women's Thermal Merino Plus Base Layer Collection was made so more women can get after it and feel good doing it—because every body belongs.
Focused on fit.
We've conducted focus groups across the U.S. with diverse groups of women to make sure we created a fit for all your unique needs. Our plus size base layers are designed to enhance all body types with a slim fit that's perfect for layering under your clothes or flattering on its own.
Made better, not just bigger.
Packed with the natural power of Merino and designed with a flatlock seam construction to eliminate chafing, you'll be comfortable longer, so you can go further.
A better base for better days.
Made with responsibly sourced 100% Merino wool that's soft against the skin, our base layers naturally manage moisture and help regulate your body temperature during all your cold weather pursuits.
*Spend $149 or more on Smartwool.ca and receive one pair of Holiday Ugly Sweater Socks, a $32 value. Offer valid from Nov 24, 2022 until supplies last.
Can not be combined with other promotions.