Bought off ebay for £15, but I'm sure they're too small for me as the straps at the bottom won't make it round my calf and they keep slipping down. so yeah I'd say they're a medium (labels have been cut off). obvsly welcome to try on etc.
£15 back would be nice to fund some bigger ones, I've only used them once or twice when we played in the rain. (rrp is £35ish afaik)
£10 here before evilbay?