Hamilton Water-Resistant Roll-Top Backpack by Knomo

From Knomo, the Hamilton backpack has weather-ready practicality (so you can wear it every day) and plenty of style (so you’ll want to). It’s made of high-frequency nylon backed with water-resistant polyurethane, and the main compartment’s roll-top closure makes it nearly airtight. Inside, you’ll find room for books and clothes, a padded section that fits a 14-inch laptop, and the company’s signature organization pocket for cards, pens, and other small items. There’s also a zippered pocket on the front of the bag, where you can safely store maps and other essentials you may need to grab on the go.