TKO Hydration Bag with Liquid Reservoir Made from lightweight, breathable mesh, providing both comfort and function Fully adjustable sternum strap keeps the hydration pack comfortably in place while you are active (one size fits most); Elastic bands also provide some give while you are moving Detailed with reflective loops for higher visibility while racing, hiking or whatever outdoor activity you may find yourself in; Designed with an outer bungee catch for easy accessible item storage TKO water pouch is constructed with a wide mouth for easy pouring, twist-open cap and removable tubing for your convenience; Low profile pouch for stability Providing 1.0 liters (34 ounces) of liquid to keep you going longer; Total height of 16"