Features: Can be folded into a very small-sized object, and placed in waist bag, chest bag, bag, backpack, yeah, pocket on your pants, almost anywhere. Ideal for outdoor sports like bodybuilding, playing basketball etc, also a nicehoice for picnic, party and so on. Three models to meet the different needs of water Foldable,easy to carry. Mouth piece design, water yielding by squeezing. NOTE: For different monitors, the color may vary slightly. Besides, please allow some errors of manual measurement, thank you for your understanding!