1.Large CapacityUnfold dimension is 18.9x12.6x6.3 inches, can be placed under seat, save your overweight charges.2.Waterproof & WashableSports gym bag is made of waterproof fabric, bring you a clean and comfortable journey. You can go directly to the washing machine for cleaning and reuse.3.Unique DesignEasy carrying, We designed a pocket allows bag to slide over the luggage handle, and there is a extra pocket to storage your daily use item.4.FoldableOnce you're done using it, you simply fold it away neatly back into the little bag attached to it. The bag also serves as a little side pocket when the bag is in use.5.MultifunctionalTravel, shopping, luggage, gym bag, carry-on bag, sports, hiking and camping, beach bag, laundry bag.