Mesh pouch casecover outside back pocket has one

outside back pocket has one large expanded zip pocket

sternum straps stabilize and reduce the heavy feeling when carrying in backpack mode

and detachable shoulder strap with shoulder pad

Outer shell fabric is our super durable 1680 denier ballistic nylon that is highly abrasion resistant and water resistant

and designed to fit full sized music folders

Mesh pouch casecover outside back pocket has oneOrganize and contain to your hearts delight! These handy pouches are designed to hold all the small items you need to carry in your bag. Made of vinyl coated mesh with a zippered closure. The mesh add ventilation, and makes it easy to see what's inside. Comes in three sizes sold separately. Small measure: 5" long x 4" tall Medium measures 7 1 2" long x 3 1 2" tall Large measures 10 1 4" long x 6 " tall Note: If these three sizes don't suit your needs,