Auideas 8016 Ultralight and Ultra-versatile Packable Durable Travel Backpack/Waistpack/Shoulder bag -- 100% Satisfaction Guarantee-Lifetime Warranty-Khaki-M Converts and expands from waistpack to backpack; top compartment expansion offers an incredible 270% more capacity when in the backpack configuration. Adjustable waistpack and moisture-wicking Air Mesh backpack straps for comfort. Zip-away internal divider for increased organization of contents. Two side compression straps.Two side bottle holders. Material:Water-resistant Nylon Fabric.Unfold: 16.9x9.8x7.1 inches, Fold: 9.6x6.6x2.7 inches. Weight: 1 pound.