The 9 Best Organic Socks of 2021

Keep your feet warm and environmental footprint light with these pairs

Our editors independently research, test, and recommend the best products; you can learn more about our review process here. We may receive commissions on purchases made from our chosen links.

The Rundown
"The cheerful ecru ikat and striped socks are made from GOTS-certified organic cotton and are PETA approved vegan."
"These cute socks are made in India from 98 percent GOTS-certified organic cotton blended with two percent elastane."
"Soft, insulating, and moisture-wicking, Maggie’s Organics Celestial Sweater Socks are heaven on your feet."
"With medium cushioning and seamless toes, the socks give support and don’t bunch up, preventing pain and blisters."
"Perching right on your ankles, the seamless toed socks are great for warm weather."
"Casual yet classy, this three-pack covers the basics at the best price."
"These mid-rise crew socks are Fairtrade certified, made with GOTS-certified cotton are a office-ready."
"UK-based Thought’s bamboo socks are intricately designed and mindful of the planet."
"Although these socks aren't organic, these sassy socks are made from recycled water bottles."

Socks are an incredible way to bring an element of fun into your wardrobe. Fortunately, there are plenty of eco-friendly socks brands that keep your ecological footprint low and feet on a happy high. Choosing the right organic socks for your feet is as easy as a hop, skip and a jump. Whether ankle or crew, wool or cotton, hiking or dress socks, there’s a wide variety of quirkily designed, cleverly blended and ethically created socks made from environmentally friendly materials.

However, socks present a unique challenge if you’re seeking completely natural bootees. Socks need to be stretchy, durable and supportive, and thus organic fibers are blended with a certain percentage of synthetic material such as nylon, elastane, polyamide and spandex. We’ve pointed that out in each pair we have selected. So, if you’re looking for socks with a conscience that defy early sagging and avoid the pesky toe-hole, look no further.

Ahead, our picks of the best sustainable socks that will keep your feet warm and your wardrobe sharp.

Best Overall: People Tree Summer Socks Set of 3

People Tree Summer Socks Set of 3

Our pick of socks is from UK-based People Tree’s summer collection, the cheerful ecru ikat and striped socks. Since 1991, People Tree has been creating conscious clothing, working with ethical producers, artisans, farmers and garment workers.

Made by their Fairtrade certified Turkish partner, Bulus Socks, People Tree is one of the few brands with cotton socks made from a generous 98 percent Global Organic Textile Standard (GOTS) certified organic cotton that’s blended with 2 percent elastane. Just when you thought things couldn’t get better, the chic socks are also certified organic by the Soil Association and are PETA-approved vegan. Wear them for work or play with a clean conscience.

Best Cotton: Kind Socks Watermelon Socks

Kind Socks Watermelon Socks

The cute watermelon socks from Kind Socks, which is reimagining wardrobe essentials with cotton and kindness, are our favorite cotton feet warmers. The socks are made in India from 98 percent GOTS-certified organic cotton blended with two percent elastane.

To wash these breathable cotton socks, they recommend you turn them inside out and pop them in the washing machine at 104 degrees Fahrenheit (40 degrees Celsius). You can expect a tiny bit of shrinkage the first time. A comfortable crew length, they come in two sizes. What’s more, they’re available in many delightful patterns—bumble bees, stripes, monstera leaves and even leopard and tiger prints. We think they'll put you in a good mood each time you put them on.

Best Wool: Maggie's Organics Wool & Cotton Celestial Sweater Sock

Maggie's Organics Organic Wool & Cotton Celestial Sweater Sock

A champion for workers and farmers’ rights, business transparency and organic principles, Maggie’s Organics’ socks embody all these values. Soft, insulating and moisture-wicking, the Celestial Sweater Socks are heaven on your feet literally, featuring stars on one sock and suns on the other.

They’re a blend of GOTS-certified organic Merino wool (50.7 percent), GOTS-certified organic cotton (19.8 percent), along with nylon and spandex. This clever mix results in none of the itchiness of woolen socks. Instead, you  feel like your feet are wrapped up cozily in a cushy cardigan.

Best for Hiking: Teko Womens Merino Hiking Socks

Teko Womens Merino Hiking Socks

When it comes to selecting the right hiking, trekking or walking socks, Teko ticks the right boxes of comfort and fit, while balancing care for the environment and cutting-edge performance. They’re designed by former professional skier and footwear designer Gordon Fraser, based on the physiology of the foot and ankle.

Although these socks don't have an organic certification, they are made from natural Merino wool certified by Bluesign, a third-party verification for sustainable textile production, blended with polyamide nylon and elastic. They are snug and stretchy and you can wear them through the seasons. With medium cushioning and seamless toes, the socks give support and don’t bunch up, preventing pain and blisters, whether you’re hitting the ski slopes or hiking trails.

Best Ankle Socks: Conscious Step Socks That Build Homes

Conscious Step Socks That Build Homes

If you’re the kind of person who doesn’t want their socks to sneak up on to your calves, look no further than Conscious Step’s ankle socks. Available in two sizes, the socks are vegan, Fairtrade certified and made of GOTS-certified cotton, mixed with polyamide and spandex. Perching right on your ankles, the seamless toed socks are great for warm weather and come with a padded sole.

Taking it a step further, for every purchase of their socks, Conscious Step donates towards different humanitarian and environmental causes and name their socks thus. For every set of Socks That Build Homes sold, the company donate $1 to non-profit Habitat for Humanity for building safe housing for families in need. As a reminder, each sock is embroidered with a wee home. If you’re still not convinced, Conscious Step also contributes to the environment through 1% for the Planet.

Best Value Pack: Eileen Fisher Organic Cotton Ankle Sock 3-Pack

Eileen Fisher Organic Socks

Casual yet classy, this three-pack covers the basics in black, white and heather grey. Eileen Fisher is a leader in the sustainable fashion space, and their organic socks are also made in ethical manufacturing facilities with a high level of supply chain transparency.

Made from 70 percent organic cotton fibers blended with recycled nylon and spandex, the socks have a non-binding cuff for additional comfort. This pack is the best price per pair we've found.

Best Dress Socks: Pact 2-Pack Crew Sock

Best Value Pack: Pact Sustainable Socks

Basic and beautiful, Pact is making sustainability accessible with affordable essentials, using responsible fabrics, innovative technology and ethical partners. The two-pack mid-rise crew socks are Fairtrade certified, made from GOTS-certified cotton, along with nylon and elastane and are great value for money.

The socks fit most foot sizes and you can choose from among the black/charcoal, maritime navy/brown, or white/cream set. Lightweight and snug, they won't sag with use, but are thin enough to wear with dress shoes without pinching your toes.

Best Bamboo: Thought Bamboo Socks

Thought Bamboo Socks

Fancy a flock of birds or a skulk of foxes on your feet? UK-based Thought’s bamboo socks are intricately designed and mindful of the planet. They’re a carefully considered blend of bamboo viscose, GOTS-certified organic cotton and certified Global Recycled Standard (a third-party certification for recycled content) polyester and elastane.

The result is bamboo socks which are soft, breathable and hypoallergenic, keeping bacteria at bay. Thought conserves energy by shipping the socks via ocean freight, in plastic-free, FSC-certified card packaging, made from responsibly managed forests. International deliveries take around two weeks to arrive. It’s well worth the wait.

Best Crew Socks: Girlfriend Collective Please Recycle Crew Sock

Girlfriend Collective Please Recycle Sock

Although these socks aren't organic, there are many things we like about them. Popular activewear brand Girlfriend Collective’s crew socks are envy inducing, whether at full length or scrunched down to a quarter crew. They are cozy, well-cushioned and comfy. Available in funky neon (our personal pick!), seedling green, limestone and white colors, their compressive stitch is said to boost your blood circulation.

The socks are made from OEKO-TEX certified fabric created from 93 percent recycled water bottles, (which are BPA free) and spandex at a SA8000 certified factory, which ensures fair wages and safe conditions for workers. What’s more, once you’ve stretched them out of shape, you can even recycle the pair with their ReGirlfriend program.

Final Verdict

Sustainable socks are a great way to add a pop of color to your green wardrobe. Our top recommendation is one of our favorite brands People Tree Summer Socks (view at People Tree) made from organic cotton.

If you're looking for a classic dress sock, consider Pact's organic two-pack (view on

Why Trust Treehugger

To ensure you are choosing a sock which satisfies organic criteria, we have shortlisted socks which have been certified by appropriate third-party certifications. Except where noted, every sock on our list is made from Global Organic Textile Standard (GOTS) certified cotton or wool, which means that the textiles used have at least 70 percent organic natural fibers.

We also look for Fairtrade certification, which implies better prices, decent working conditions and a fair deal for farmers and workers in developing countries.

Treehugger is dedicated to helping readers live sustainably by choosing an eco-friendly lifestyle. Author Neeti Mehra is a luxury-industry veteran who’s also committed to sustainable, slow, and mindful living.