This amazing lightweight travel or gym bag starts out at only 12" top to bottom x 10" front to back x 1-1/2" length, but once you unzip it all the way around, it folds out to be 19 x 11 x 10 inches (L x H x W). It has one large section inside, and another small zipper pocket on the front. In beautiful royal blue, with reinforced nylon straps on top for carrying, and an adjustable nylon shoulder strap.A Clever Unique Design, With A Small Bag That Unzips And Unfolds To Become A Larger BagThis bag is perfect as an airline carry-on, or use it as a convenient gym bagFolded size is 12 "(top to bottom) x 10" x 1-1/2 "(long) & unzipped size is 19 "(long) x 11" x 10"Strong, reinforced nylon fabric and straps - in beautiful royal blue colorIncludes top-carry straps, as well as an adjustable and removable shoulder strap