If you're a thrifty spender, take a look at this Backpack. It's a fantastic piece for a reasonable price. Another great option is this Pacsafe Rucksack. While the price is competitive, be sure that this piece will become a wonderful addition to your wardrobe. Or you can choose this Herschel Backpack - be sure you'll be making a stylish addition to your wardrobe.
If you're a bargain shopper, you're in luck with this Tumi Backpack in stock and waiting for you. You are guaranteed to love this piece. You can also consider this FjallRaven Backpack. It's an attractive option both price and quality-wise. Check out this Tumi Rucksack too! Great value for your money.
If you're not the one to skimp on clothes, then what you're looking for is this Filson Backpack. It's more expensive but worth your money.