If you are on a tight budget, this Botkier Cross Body Bag will fit the bill. It's a popular choice, while not very costly. In this price range, you can also consider this Rebecca Minkoff Crossbody. It's an item you'll fall in love with which also doesn't cost the earth. You might also want to consider this Crossbody. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.