I've only had the bag and used it 5 times a week for 3 weeks maybe. So far....
This leather gym bag has plenty of room for a pair of sneakers in the side pocket. There's also room for a change of clothes, towel, and personal item pouch inside the main compartment.
There's also plenty of extra room in the side pockets, and front mesh pocket.
The bag comes folded up from the factory, so it will appear as if there's not enough room the first time you use it and start getting stuff in it. It will settle after the first couple of used and you'll see how much room there is.
Very high quality soft leather, and getting softer by the day. Strong stitching on the inside nylon shoe pocket and nylon lining. I hope this holds ups, since usually my nylon gym bags fall apart after a while and that's why I decided to upgrade to something that's going to last far longer.
My only nitpick is that the shoulder pad on the shoulder strap should be able to fully slide and adjust, and be able to slide to the center no matter which length you set the shoulder strap to. Somehow the hole on the shoulder pad is too small to let the buckle-ish metal brace on the strap that lets you adjust the length, and the way I wear the strap leaves the pad just off center and not fully centered on top of my shoulder. no big deal for such a great value for this bag.
I will update this review if the quality starts to degrade quickly.