Here is one I recently bought from Amazon Basics ($29.99) https://www.amazon.com/AmazonBasics-Backpack-Laptops-Up-17-Inch/dp/B00EEBS9O0/ https://www.amazon.com

Here is one I recently bought from Amazon Basics ($29.99) https://www.amazon.com/AmazonBasics-Backpack-Laptops-Up-17-Inch/dp/B00EEBS9O0/ https://www.amazon.com/AmazonBasics-Backpack-Laptops-Up-17-I... - Large multi-compartment backpack with a padded sleeve for laptops - Holds up to 15.6 inch laptop and some ultra-slim 17 inch laptop - Mesh water bottle pockets at side - Organizational compartments for pens, keys, and cell phone Internal Dimensions: 12" x 4.5" x 17.5" (LxWxH); External dimensions: 15" x 7" x 19" (LxWxH) - Large multi-compartment backpack with a padded sleeve for laptops - Mesh water bottle pockets at side - Organizational compartments for pens, keys, and cell phone