That pic shows 2 racket handles sticking out the corner. Compare a tennis racket with a shuttle tube to get an idea of size.
There may be just about enough space for your 4 tubes and rackets and small amount of clothes when well packed and dry.
Shoes maybe not - that bag looks a bit flat.
In the past when I tried backpacks with racket handles sticking out like that after walking some while the rackets would start to lean over and make it a bit awkward. It needs a strap or something in the bag to hold them vertical, not just the zipper.