The original, foldable, virtually collapsible water bottle holds up to 16 ounces, yet can fold up in a small roll or lay flat in a briefcase or backpack. Designed to meet FDA requirements. The back imprint lists all pertinent use and cleaning information. It's top-rack dishwasher safe and also has a write-on area for personal identification. The removable cap has a thoughtfully placed retainer strap, so the mouthpiece can be kept covered and more.