Note: this article previously featured partially synthetic items, which were removed in May 2025. As our brand research has expanded, we have found more options for 100% plastic-free socks.
Why should I switch to plastic-free socks?
In our full guide, we discuss the importance of switching out synthetic clothing from your wardrobe to reduce a common method of microplastic exposure.
The absorption of microplastic particles is mostly due to specific clothing items made from plastic that contact your skin directly, such as underwear or bedsheets.
Polyester-based socks can be a large source of microplastics on their own, since they experience more mechanical wear and tear than other clothing items (moving around in shoes, direct contact with hard surfaces inside your home, are washed often) and tend to get sweaty (from daily use or working out), which increases the rate of microplastic absorption through your skin.
In this article we have curated the best plastic free socks from brands that prioritize natural fabrics.
The best 100% plastic-free socks
In this list, we have an assortment of brands that either focus on socks exclusively or have plastic free offerings as part of their catalog variety.
1. Cotedge
Based out of Nevada, this hand-made 100% organic cotton sock brand solves the polyester problem by creatively utilizing natural rubber in the band to maintain shape. Contrary to popular belief, these non-synthetic socks were comfortable and surprisingly blister-free during our tests that involved regular all-day use, gym sessions, and even a 10-mile hike.
Cotedge features two main kinds of socks, ankle and crew, with a variety of colors, the option to omit the natural rubber band, and whether or not the sole is stitched in a tighter fashion for a 'sport' feel.
2. Industry of All Nations
Industry of All Nations is one of the world's most sustainable brands, promoting the exclusive use of natural fibers in all of their pieces, including their socks.
The Alpaca Cabin Sock is made from high quality 100% alpaca wool fiber, made in Bolivia.
Looking for more ways to reduce your microplastic exposure?
Check out out going microplastic-free guide, which outlines the best first steps you can take today to prevent exposure to harmful microplastics.
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