Ethylene-vinyl acetate material Durable, washable, tip-proof Comes with a set of two clear insert bags One large insert bag with 3 white buttons across the back One small insert bag with 2 white buttons across the back Snap the buttons on the back of the insert bags into any free hole on the bag, inside or out Large insert approx. 9.5" H x 11.25" W x 0.25" D when flat but 2.5"D when open; 9" handle drop Small insert approx. 5" H x 7" W x 0.25" D when flat but 1.5" D when open Approx. 19" x 15" x 9.5"