Some chloe bags are leather and some are vinyl. It depends on the bag, but the tags will say what the bags are made of. Also, it depends on the style as to how well they hold up and how easy they are to maintain. Maybe you should check the reference section to see the different types of chloes.
The majority of Chloe bags are leather, they are good quality thick leather that hold up very well. They are easy to look after. You dont have to treat the leather if you dont want to. My hobo paddy and betty have been in alot of rain and there are no issues. Once they're dry they look good as new. They are also from 05 and 06 seasons.