Superphased Goniochromism Backpack 

• 100% polyester, water-resistant, 9.56 oz
• 16" x 12" x 3"
• Max weight: 44lbs 
• Large inside pocket with separate compartment for 15” laptop
• Front pocket with zipper
• Hidden pocket with zipper on back of bag
• Two top main bag zippers
• Silky lining, soft mesh back
• Padded ergonomic bag straps