The cotton that started it all.
The majority of every Revert sock is organic cotton — no pesticides, no chemical treatments, nothing that harms the skin wearing it or the soil it eventually returns to. Cotton fibers that shed biodegrade. They don't persist.
What are microfibers?
Tiny threads, thinner than a hair, that break off clothes in the wash. From nylon or polyester, they are microplastics. Once they reach rivers and the sea they are too small to collect, and they stay for 500+ years.
Almost every sock has some nylon. It gives stretch and helps the sock last. Yours are mostly Pima cotton: 62% to 73%, depending on the style. Nylon is about a quarter to a third. Here is what we did with the nylon part.
Made to last. Not forever.
Two things we did with the nylon part of your socks.
Most socks: short fibers
Ours: one long thread
Illustration
One long thread.
Many synthetic yarns are short fibers twisted together, and the ends break off. Our nylon is one continuous thread, so far fewer come loose.
Made to break down.
An ingredient in the nylon lets natural microbes break it down after a long time in soil or water. On your foot it stays strong.
Conventional nylon stays for 500+ years. Ours is made to break down in years, wherever old socks and loose fibers end up: landfill, soil, wastewater or the sea.
What your socks are made of outlives the socks themselves. Choose accordingly.
And built to last.
The cotton is 2- and 3-ply, twisted tight for strength. In the wear test these lasted 11,159 rubs, more than twice the industry standard of 5,000.