Large Backpack made with waxed canvas on outside to give a 'rugged' look,  FUN sunglasses patterned duck cotton on the inside, and interfaced for stability.  
 
17" wide and 20" long.  
 
Wide pocket on the front with lipped cover and zipper pocket on the inside for extra storage.  Sturdy 1.5" wide webbing for straps, handle for hanging and extra hook on the side for carrying water bottle secure etc.,