This lightweight, collapsible bottle features a high-flow nozzle for quick hydration during races. It is easy to store when empty. The Big Bite valve allows for simple biting and drinking without spilling a drop. The smart closure system ensures leak-free transport. The wide opening makes it easy to fill with water and ice, as well as to clean. The bottle dries easily and can be folded to fit into almost any bag. It is free from BPA, BPS, and BPF, and is dishwasher safe. The measurement markings in oz/ml allow for precise dosing of water intake and electrolytes. The bottle is completely taste-neutral.