If you're a frugal shopper, this Rebecca Minkoff Backpack will fit the bill. It's a fail-safe choice, while not very costly. Another nice option is this Backpack. While the price is competitive, be sure that this piece will become an excellent addition to your wardrobe. You may also want to look at this Lodis Rucksack. This item is not expensive either, but it will make a difference in your wardrobe.
If you're after a bargain, why not check out this Rebecca Minkoff Backpack. While the price is very reasonable, this item is an easy wardrobe update. It's also worth looking at this MCM Rucksack. This piece is ultra popular and, just as importantly, not very expensive. And do check out this Rucksack! It's a very popular item and good value for money.
If you're not a thrifty type, then what you're looking for is this Givenchy Rucksack. It's more expensive but worth your money. While you're at it, also have a look at this Charlotte Olympia Backpack. Yes, this item is expensive, but it does not mean it's not worth it. And one more item you might be interested in is this Moschino Backpack. 'Cause you deserve nothing but all the finer things!