I have no Idea! Nobody has ever asked that question. How can you measure it when it's all covered up with nylon and stiching! All I know is that it is very popular amongst working musicians who need a good quality padded bag. Levys makes two quality bags and the DX is the deluxe model. It is nicely made with a cotton lining inside, a nice compartment for the music rack, a pocket on each end with a velcro strap and an overside pocket with zipper in the middle and.......every case I sell says Kaye's Music Scene on the Poctket. Great advertising for me!
George Kaye
Kaye's Music Scene
Reseda, California