Brands like Darn Tough
Updated November 7, 2026
Darn Tough knits merino wool socks in Vermont and backs them with a lifetime guarantee. These brands also sell wool socks.
Almost every wool sock includes nylon for strength and some elastane for fit. Look for a high wool share, a reinforced heel and toe, and a cushion level that suits how you will wear them.
The 20 brands below sell wool socks and are listed in The Plain Thread directory. The green links go straight to their matching shop pages. Some of these brands also sell blends, so check the fiber content on each product.
Organic cotton socks, underwear, and kids clothing at accessible prices.
Alabama-made organic cotton socks in a wide range of styles for men and women.
Danish organic cotton basics in a wide range of bold colors for men and women.
100% New Zealand merino wool base layers and travel clothing for men and women.
100% merino wool base layers and outdoor apparel for men and women.
Merino wool outdoor and travel apparel for men and women.
New Zealand ZQ merino wool ski and outdoor apparel for men and women.
San Francisco men's brand making denim and casual clothing in organic cotton and wool.
Dutch legwear brand making cotton and wool socks, tights, and hosiery for men, women, and children.
Organic wool and cotton socks, tights, and leg coverings for babies, children, and adults, made in Germany.
Australian socks in wool, cotton, and alpaca for men and women.
Merino wool socks, base layers, and outdoor apparel for men, women, and kids.
Alpaca and vicuña knitwear for men and women across a range of price points.
Merino wool base layers and cotton outdoor clothing built for hiking, climbing, and running.
German casual and denim brand in organic cotton, linen, and wool for men, women, and kids.
High-end Danish basics in organic cotton, wool, wild silk, linen, and hemp — full natural fiber range.
Handmade cashmere and wool knitwear, cardigans, and everyday clothing pieces crafted using traditional techniques in Nepal.
UK surf and outdoor brand making apparel in organic cotton, hemp, and merino.
Mongolian luxury cashmere and camel wool knitwear for men and women.
New Zealand merino wool outdoor base layers and apparel for men, women, and kids.
Common questions
Why do wool socks contain nylon?
Wool alone wears through at the heel quickly. Nylon makes socks last much longer, and nearly all performance wool socks use it.
Are wool socks good in summer?
Light merino socks handle sweat and odor well, so many hikers wear them all year.
Do wool socks shrink?
They can if washed hot and machine dried. Wash cool or warm and tumble on low, or air dry.