laptop bag suitable for lenovo saver y7000 dell 14 male apple 16 backpack 15.6 inch

13-inch 14-inch 15-inch 15.6 17.3

note: 13-15.6 is the universal free size size standard-black (with usb adapter + side pockets) standard model-light gray (with usb adapter + side bag) standard-pink (with usb adapter + side pockets) standard model-dark gray (with usb adapter + side bag) multi-layer-black (180-degree opening and closing + pull rod belt) multi-layer-light gray (180 degrees opening and closing + pull rod belt) multi-layer-pink (180 degrees opening and closing + pull rod belt) multi-layer-dark gray (180 degrees opening and closing + pull rod belt) waterproof shockproof upgrade large capacity airbag cushion-mysterious black waterproof and shockproof upgrade large capacity airbag cushion-gentleman gray waterproof and shockproof upgrade large capacity airbag cushion-rose pink waterproof shockproof upgrade large capacity airbag cushion-deep space gray simple-black (no usb interface/no side pocket)