Three friends cross-country ski across a powder covered meadow
Smartwool logo

Smartwool

Smartwool is more than just soft, warm, itch-free and odor-resistant socks. It’s also clothing, hats and accessories for the whole family. For over 20 years, they’ve been pushing the boundaries of Merino to create smarter, more comfortable gear from head to toe.

4.6 (11265 reviews)

REI offers 482 Smartwool products

Snow-covered mountains in the background, two friends in warm Smartwool clothing kick back on a sunny porch

Happy sheep grow great wool

Smartwool’s merino base layers are made with 100% responsibly sourced, ZQ-certified merino wool. ZQ is a New Zealand program that ensures the highest standards for wool quality, animal welfare and environmental responsibility. Now that's smart.

Stay warm, and dry, while playing outdoors

Smartwool's thermal-mapped tops and bottoms help regulate body temperature, while quickly moving away sweat from your skin.

Go far and feel good

Core-spun construction is extra durable; thoughtfully designed seams minimize chafing.

Year-round comfort

Choose lighter Merino 150 for high-intensity workouts, or thicker Merino 250 for those colder months.

Benefits beyond the basics

Not only soft and breathable, ZQ-certified merino wool also resists odors. Naturally.