After four years of development and over fifty prototypes, the EX.01 sports sock from Boldwill marks a new chapter in sustainable sportswear. While all sports socks contain some form of synthetic fiber, we collaborated with Forebel to create the world's first sports sock made entirely without plastic. The combination of GOTS-certified organic cotton and FSC-certified natural rubber ensures a naturally stretchy, breathable, and comfortable fit.

The undyed yarns create a soft off-white color that honors the raw materials and reduces environmental impact. Every part of the sock has been carefully designed to enhance grip, comfort, and performance, proving that technical function and sustainability can go hand in hand.

Manufactured in Turkey by experienced textile specialists, the EX.01 embodies a mission to move beyond reliance on synthetic materials and redefine what sportswear can be. With every pair, you support a step toward a plastic-free future and contribute to SockbySock, an NGO fighting overproduction in the textile industry.