There are recycled plastic bottles in these socks, really? Yes. With each purchase of a pair of socks in our REPREVE® Collection, 3 plastic bottles are recycled instead of polluting landfills or waterways. But they can’t be comfy. They’re made from bottles!! Actually, these socks are unbelievably soft and cozy, surprisingly breathable and incredibly durable. And what’s even better, REPREVE® yarn, like our socks, is made in the USA.