A footballer's sock is not the most glamorous piece of kit. But at one English sanctuary, it has become a small piece of veterinary magic.

A second life for a humble sock

Arsenal Football Club has been donating its players' worn socks to Redwings Horse Sanctuary in Norfolk, in the east of England, which cares for some 1,500 rescued horses, ponies and donkeys. The first batch arrived this spring — and the sanctuary's staff quickly found the thick, stretchy socks were, in their words, a "fantastic bit of kit."

What the socks are for

The uses turn out to be surprisingly varied. Pulled over an animal's leg, a football sock can shield sensitive skin from biting flies, hold a veterinary bandage neatly in place while a wound or surgery heals, and stop a headcollar from rubbing. The socks even come in handy at the farrier's, helping to keep hair out of the way while a horse's hooves are trimmed. For animals recovering from injury, that simple protection can make the difference between a smooth recovery and a complication.

Waste, rethought

The idea grew out of a practical problem. A football club gets through a great many pairs of socks over a season, and most would otherwise be thrown away. Arsenal's sustainability team, looking for somewhere useful for them to go, got in touch with the sanctuary — turning a stream of discarded kit into a steady supply of animal care.

It is a modest story, but a cheering one. Not every act of recycling needs new technology or a grand plan; sometimes it just takes someone wondering whether an old sock might still be good for something — and a paddock full of horses and donkeys for whom the answer is a grateful yes.