I own a 20 plus year old Nike bag with a separate compartment for dirty gym clothes. The zipper only kind of works, but it's so hard to find something built like this now. The separate compartment is better than a disposable bag because you never have to replace it. You can throw a wet bathing suit in the separate compartment, and everything else stays dry and clean smelling. If going to the gym is something you do frequently, a gym back like this is definitely worth the investment.