Water proof, double kiss zippers and a zipper pocket on the outside. Geat to travel with take it empty folded in your suit case. Then fill it full of your vacation silvaniers. Fun little bag light weight easy to carry and easy to store. See picture 2 above for size. The zipper pocket in the back is great for quick access to plane tickets or I.D. Great carry on. The slit behind the pocket is made to slide over your big suit case handle.