The art of the running sock

Sustainability. Marrying performance with sustainability was always going to be the big challenge. The majority of conventional running socks use environmentally harmful virgin synthetic fibres (plastics like polyesters, polyamides etc) for good reason. Their wicking, durability and stretch performance is high, however, their greenhouse gas emissions are higher. Their ‘indestructible’ nature also allows them to sit on landfill for the next 200 years. By using recycled Nylon we benefit from the performance elements of these fibres whilst dramatically reducing the energy, water and emissions associated with manufacturing a virgin material. Our recycle scheme is designed to solve the landfill issue. When it comes to retiring your old socks, you can send them back to us be recycled and their materials repurposed.

Design. Runners have long suffered having to look like power ranges when wearing their running kit. Neon this and that. Our socks have been designed to be fuss-free and neutral to suite all shoe and apparel choices. Nothing too wacky.

Responsibility. The first step we took after having the idea for Sums was to find a partner factory leading the way with the right certifications to prove their commitment to manufacturing responsibly (compliance, worker rights, supply chain transparency & energy efficiency). We’re delighted to be working with an amazing family-run factory in Portugal (Porto) that are certified with Global Recycled Standards, GOTS, OEKO TEX Standard 100 & ISO 9001.