When looking for a sport bag, there are several types, several brands, and several places to look for all of them. One can use any bag for a sports duffel bag really; it just needs to be able to hold: a change of clothes, which are normally the clothes used when exercising, which can be replaced with the street clothes, and possibly some small weights and other exercise tools. Sometimes a large backpack or a large messenger bag could work as a sports duffel bag. A lot of times, the duffle bag is the preferred sports bag though.
Most bags that are labeled as sports bags are actually duffle bags. They're a simple, cylindrical shape, made with waterproof fabrics normally, or water-resistant fabrics, and they have one sipper on top in the middle, sometimes extra pockets, and they also have one strap on top, and sometimes they have two smaller handles on either side of the zipper. Other duffle bags are not made out of waterproof fabric. Sometimes it costs a little extra in order to get a bag that is not going to be susceptible to water damage or need to dry constantly on a rainy day or if a drink gets spilled on it.
Some sports duffle bags are made for the convenience of the person playing sports. They sometimes have pockets on the sports bags that are able to hold water bottles and healthy snacks for the person. They are normally on the sides of the bag or something, where they are able to be easily accessed by nearly anyone who needs a drink.
Good fitness bags can be bought almost anywhere, depending on what kind of equipment or fitness bag someone wants to buy. There are department stores that normally sell book bags and backpacks and messenger bags that some people will use as fitness bags. Those can be found nearly anywhere, at K-Mart, Wal-Mart, Kohl's, and other stores like that. Other more hardcore sports enthusiasts are normally a little bit pickier than to accept any bag from any store.
If you're on the choosy side you might want to buy online from Colinas-Store, and see what websites come up that are in business to sell vintage women helmet. There are also specialty sports enthusiast stores out and about, such as Dick's Sporting Goods, Dunham's Sporting Goods, and other stores of that nature. Any fitness store will have all sorts of sports bags on sale from the leather sports bag to the pink sports bag.