Large Coolbell Convertible Backpack Messenger Shoulder Bag Laptop Case Travel

Coolbell Convertible Backpack Messenger Bag Shoulder Bag Laptop Case Travel Handbag Color- Charcoal /Distressed black. Very heavy rugged style. Seems like an oiled canvas with a black denim look. Some Leather straps and some heavy cotton I believe. No tags that show model. Approx size 16.5-17" across x 13.5" high  x 4.5" Preowned.  Hardly used. Three carrying styles. You could use it as backpack shoulder bag and messenger bag. Also the backpack straps can be hidden, tucked into the back compartment pocket. They also attach inside. Five outside pockets, ( 4 zipper and 1 open by handle.) Padded laptop compartment. See, for model or style number. See photos. Any questions please ask. Thanks for looking!