Unusual for a cycling glove but I have found the pair I bought to be generous in size (XL) and I probably could've got away with a large. My knuckle width is 4 inches; the width of the glove (XL) is 4.5inches but when on it is not screaming loose. So if your knuckle width is any smaller than mine an XL will be way too big for you unless you have fingers like an aye-aye. Hope this helps...
4 years, 10 months ago