Business Laptop Backpack Laptop Backpack Add to Cart Business Backpack Buying Options Business Backpack Buying Options Slim Laptop Backpack Add to Cart Slim & Expandable Laptop Add to Cart Customer Reviews 3.4 out of 5 stars 2 5.0 out of 5 stars 3 4.6 out of 5 stars 421 4.6 out of 5 stars 457 4.6 out of 5 stars 5,138 Price $39.99$39.99 — — $56.99$56.99 $27.99$27.99 Expandable ✔ ✔ ✔ ✔ ✔ Splash proof ✔ ✔ ✔ ✔ ✔ Polyester ✔ ✔ ✔ ✔ ✔ Polyester ✔ ✔ ✔ ✔ ✔ Expandable ✔ ✔ ✔ ✔ ✔ Can this backpack be carried on the plane as a personal item? Yes, This backpack meets the personal item standards of most airlines. Can I put this backpack on my suitcase? The laptop backpack straps connect to two removable lobster clasps that can be hidden in a separate inner pocket at the back when not in use, along with a luggage strap to secure the backpack to a suitcase for easy carrying. How about extended functions ? With everything zipped open, you'll have a large, separate inner pocket for clothes on short trips, and a separate back compartment to protect your laptop. Is this laptop backpack waterproof? The laptop backpack fabric has a waterproof coating that can handle small daily splatters, but the laptop backpack as a whole is not waterproof. This is a what kind of backpack? This is a stylish and simple backpack, with ultra-thin and expandable two forms, can be switched between travel and commuting scenarios.