28 Oz, BPA Free, Flatten It - Fold It - Fill It. Includes Push/Pull Cap With Removable Cover, Includes Metal Carabiner, Great On The Environment, Lightweight, Reusable. US Patent # D639, 185S. Size: 9 3/4 H x 5 1/2 Diameter flat or 9 3/4 H x 4 1/4 Diameter filled. White cap only.Flatten it, fold it, fill it! This nifty 28 oz., BPA-free Collapsible Dromedary Water Pak includes a push / pull, white cap with removable cover and a metal carabiner. Great for the environment, this lightweight and reusable canteen has US Patent # D639,185S. Measurements are 9-3/4 H x 5-1/2 diameter flat, or 9-3/4 H x 4-1/4 diameter filled. Decorated via pad print or silkscreen in a variety of colors, this is great for outdoor events.