An RSPCA branch in London has put out an appeal for the public to donate baby socks, which will help cats and kittens stay warm after undergoing operations.
The socks, which can be old, will be used on feline paws at the Putney Animal Hospital when they're recovering from anaesthetic, as they tend to lose a lot of heat through the pads on their feet.
And even cuter, the socks are sometimes big enough to make all-in-ones for tiny orphaned kittens.
Apparently, the cuties - that are hand-reared - often try to suckle on each other as they are a bit confused, and this can lead to soreness. So, the makeshift jumpers made of socks prevent that.
It is too adorable.
The RSPCA Putney Animal Hospital took to Facebook initially to appeal to the public: "We have run low on baby socks for the animals here and would be very grateful if you could send any spares/old ones our way."
Apparently it's not just cats that benefit either. Dogs, rabbits and even birds can be helped from the simple item.
The hospital also detailed how one bird benefitted from a simple sock on Facebook.
It said: "This is our little "Princess Budge" who was quite uncomfortable and chilly after losing a lot of her feathers during a fight (that she didn't win) with another budgie.
"We were able to cut holes in a baby sock for her and use it as a makeshift jumper to keep her warm while she recovered."
The hospital also explained how its Lurcher dog Cedric has a sock as a scratching prevention aid.
Emma Turner, ward supervisor at Putney, said: "We are running low on baby socks for the animals here and would be very grateful for any spares people may have at home.
"Any keen knitters out there can help as knitted socks are great too.
"We can use socks for all sorts of purposes - to help animals retain heat as they come round from operations and we have even turned them into little jumpers for our tiny orphaned kittens."
If you can help the cause, please send your socks to Putney Animal Hospital, 6 Clarendon Drive, London, SW15 1AA.