Marvel Spiderman Backpack For Boys (16" Backpack) Be ready for any adventure with this Marvel Spiderman backpack featuring the Amazing Spiderman! This Marvel Spiderman backpack for boys features licensed artwork. Zip closure. Adjustable shoulder straps. Top loop for hanging. Marvel Spiderman backpack measures 16 inches by 12 inches by 4 inches. Just the right size for back to school children. Officially licensed Spiderman product.