Platypus Soft Bottle with Hyper Flow Cap, Blue, 1-Liter Available with Closure Cap, Push-Pull Cap (select models), or our new dual-valve Hyper Flow Cap (select models) Available with Closure Cap, Push-Pull Cap (select models), or our new dual-valve Hyper Flow Cap (select models) Available with Closure Cap, Push-Pull Cap (select models), or our new dual-valve Hyper Flow Cap (select models)