The closure mechanism on this bag is a zipper. You carry the bag with a dual shoulder straps.
Wenger 606492 Pegasus Ballistic Deluxe 14'/16' Expandable Laptop Backpack, Padded Laptop Compartment with SmartCharge USB Port in Black (25 litres)
The product is available from £62.83 at international stores.
Conrad Electronic
Wenger Laptop backpack Pegasus Deluxe Suitable for up to: 39,6 cm (15,6) Black
Wenger/SwissGear Pegasus Deluxe 16" 40.6 cm (16") Backpack B -
This product is also available at 1 unverified merchant.