The closure mechanism on this bag is a zipper. Maybe not a good choice if you prefer lots of colour choices, but it does come in black.
From Quzo
Kensington Simply Portable 15.6'' Laptop Backpack - Black. Case type: Backpack Maximum screen size: 39.6 cm (15.6"). Weight: 710 g. Surface coloration: Monochromatic
Technoworld PLC
Kensington SP25 Laptop Backpack 15.6IN - K63207EU
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