Unique easy-to-clean design. Bacteria and odor resistant. Ergonomic shape and size (27oz volume). Highest quality, durable and non-toxic BPA Free materials. Perfect for; supplements, water infusions and smoothies. Leak-proof - confidence to go anywhere. The easiest to clean bottle in the world. The MOUS fitness bottle is the multipurpose bottle that helps you stay healthy and hydrated wherever, whenever.