Backpack Properties
Size : height 15.7 x width 11.8 x thick 6.3 in  
Weight: 450g
Material: Terylene
Capacity: For iPad and Laptop
Details: Two-way Zipper,Side Pocket,Interior Slot Pocket,Adjustable Shoulder Strap, Tough Handle

Messenger Bag Properties
Size: height 9.4 x width 2.0 x thick 9.4 in
Weight:350g
Material:Polyester
Details:One Main Pocket, one inside pocket, one back pocket

Pen Case Properties
Size:height 4.3 x width 8.7 x thick 1.7 in
Material:Polyester
Details:One main pocket