Avery Greenhead Gear GHG Over-Size Duck Diver Pack - 70252 Canvasback dimensions: 16.5in long x 7.5in wide; Weight: 29.1 oz. Goldeneye dimensions: 15.5in long x 7.75in wide; Weight: 28.9 oz. Bufflehead dimensions: 12.5in long x 6.75in wide; Weight: 16.3 oz.