XS women's gloves #freecycle

It's a S but I think they may be more of an XS. There's a 3"x 3" flat span zippered pocket on the back of each glove. Don't know if that's meant for a hand warmer, maybe if such a size exists for that purpose or maybe you could put money in there. I've never used it, but just the gloves themselves maybe once or twice if at all. I can't remember. I'm giving these away because I have way too many gloves/mittens. these are originally from Costco I believe (head brand). They're a fairly thick pair