You’ve done your homework and over the summer purchased enough notebooks for your school’s incoming class, but what about bags? Sure, you can rely on each student’s family to get a bag, but expect to see many that won’t protect the system from accidental damage. Here’re three different notebook cases that are appropriate for students and cost less than $40 each.

With both handles and a shoulder strap, Kensington’s Contour Cargo Notebook Sleeve has a traditional look, yet is versatile enough for students on the go. Endorsed by the American Chiropractic Association, the Contour Cargo is perfect for growing children and fits notebooks with up to 15.4-inch screens. The $30 bag is not only waterproof but has DropShield technology that absorbs the shock of being dropped (or tossed) protecting the fragile notebook inside.
At 1 pound, Brenthaven’s Eclipse Sleeve II is the lightweight of the bunch, meaning that kids don’t have to lug around a heavy bag all day. Capable of protecting up to 15.4-inch notebooks, the Eclipse II is made of soft DuraTech fabric with nylon reinforcements at the corners and has faux suede inside. Its $40 price tag may be more than the others, but it comes with a lifetime guarantee.

The Targus 15.4-inch Sport Backpack is like two bags in one because it can not only hold a huge amount of gear but has a pull-out sleeve that protects the notebook. Weighing in at 1.2 pounds, it’s midway between the Eclipse II and the Contour Cargo and is made of polyester fabric. It costs $30 and, like the Brenthaven bag, it comes with a lifetime warranty against damage.