A sports gym bag is made of waterproof fabric. It protects your gears well from rain and easily holds heavy stuff, bringing you a clean and comfortable journey. Slide your carry-on duffle bag over a luggage handle, or carry it by hand with two top handles. This bag can hold so many things. You can use it as a gym bag, a carry on bag, or a travel/day bag, it works for everything and anything. Large Size: 18"x5.5"x12", with a capacity of 2500 cubic inches, allowing for carrying on inside most aircraft. Enough to hold everything you need for in-flight comfort and entertainment. If you're flying for overnight trip, this could easily be the only bag you need to carry.