Internal dimension: 16.14 x 12.4 x 5.5 inch (L x W x H); External dimension: 16.53 x 12.79 x 5.5 inch (L x W x H). The front top big pocket dimension: 9.44 x 10.03 inch (L x W), the inside mesh pocket dimension: 6.29 x 6.49 inch (L x W). The front small horizontal pocket dimensions: 11.41 x 4.13 inch (L x W). Compatible with MacBook, Notebook, Ultrabook and Chromebook Computers 11-11.6 inch, 12 inch, 13-13.3 inch, 14 inch, 15-15.6 inch and up to 16 inch; may not snugly fit all computers. 2 front pockets organize pens, phone, and notobooks. 2 side pockets hold your umbrella and water bottle (up to largest diameter 2.7 inch). The laptop backpack provides a compartment section with a hook and loop fastener strap closure for your laptop, that fully protect your laptop against accidental impacts and scratches. Made from durable & sturdy waterproof TPU. Reinforced & adjustable shoulder straps are specially designed wider than usual to relieve the stress on shoulder. Compatible with MacBook Pro 16 inch 2023-2021 M2 A2780 A2485 M1 Pro/Max Touch ID, compatible with MacBook Pro 16 A2141 2019 2020, compatible with MacBook Pro Retina 15.4 A1398; Compatible with Surface Book 3/2/1 15; Compatible with Asus ZenBook/VivoBook 15; Compatible with Acer Swift 3 14/Swift 5 15.6, compatible with Acer Aspire 3/5/7 15.6; Compatible with HP ProBook/Spectre x360/Envy x360 15.6; compatible with HP Omen/Pavilion x360 15.6; Compatible with Dell XPS/Precision/Vostro/Latitude 15. Can be used as hiking backpack, travel backpack, work backpack or any outdoor activity for men and women, meet all your carry potential, roomy enough for travel accessories. This item is not intended for use by children 12 and under. 1 year warranty on every backpack. Why should take this bag? This MOSISO travel laptop backpack protects your laptop while you are on the go.