SHANGRI-LA Tactical Backpack Daypack Molle System for School Hiking Outdoor Use 30L Material: 1000D oxford fabric, high density polyester for daily rugged use Main compartment with a laptop pouch easy to fit 14 inch laptop, a wide elastic ribbon to hold an object and a transparent pocket. Roomy frontal big compartment with gear organizer Molle strap system: creative design ( webbing is bulit by 1000D oxford fabric - more strong and beautiful ), allows for attachment of external gear; D rings on shoulder straps; Adjustable chest belt and hip belt; Padded and adjustable shoulder straps , Breathable mesh backing for comfort Size: (H)* (W)* (L) ( 17.8*4.7*12inch ); Volume: 30L Hydration Ready: water bladder pocket outside the main compartment with hose/tube pass through hole at the top