Sleeve Sizes Are a Lie
Sleeve sizes are based on screen diagonal, not the laptop’s actual dimensions, so you need to measure before you buy anything.
A “15.6-inch” sleeve is designed for a laptop that happens to have a 15.6-inch screen, but the actual body can be bigger or smaller depending on bezel thickness, chassis design, and shape. Some 14-inch laptops are physically wider than older 15-inch ones. So ignore the label and look up the laptop’s exact height, width, and thickness.
Then measure your backpack’s laptop compartment. This is the part most people miss. If the backpack has a dedicated padded sleeve, check that it’s deep enough and wide enough to accept both your laptop and your chosen sleeve. A thick padded
