If you're looking for a thrifty option, this Marc Jacobs Cross Body Bag will fit the bill. It's a great choice, while not very expensive. In this price range, you can also take a look at this Hobo Crossbody. It's a product you'll love which also doesn't cost the earth. You might also want to consider this Tory Burch Crossbody. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.