The lenscoat 3xpandable long lens bag in forest green is able to hold a dslr with long telephoto lens attached such as a canon 200 400m or nikon 500mm at full size the lens bag is 7049cm in height but it can be folded down to 5969cm and 5016cm if youre using a smaller setup furthermore the bag can be folded completely flat when its not required built to last and constructed out of heavy duty water resistant codura and lightweight water resistant nylon lining the 3xpandable long lens