Made from 90% organic cotton, 9% recycled polyamide and 1% elastane. Five cotton yarns of different colours are knitted together to give the marl effect, making our socks super soft to the touch and, more importantly, on your feet. And while they're built for comfort, they're also built to last, with a durability usually found in a much thicker sock. Both the yarn and the socks are made in Portugal, using renewable energy to keep our carbon footprint to a minimum. Our five-yarn socks are also Global Organic Trading Standards-certified, so you know what you're buying is the real deal for the planet.