I have a Canari SPF summer lightweight long sleeve jersery. I wear a size 22 (UK) and ordered a XXL. I found the top a little shorter in length than my Mt Borah jersery (which I love - also a XXL). It is also a little tighter fitting than the Mt Borah jersery. I would probably go up a size if I was going to order another one. The quality and material as well as the colour is great.