Silicone Folding Portable Reusable Bottle - 600mlStay hydrated on the go with the 600ml Silicone Folding Portable Reusable Bottle. This eco friendly hydration solution is designed for the modern adventurer, offering the capacity of a standard water bottle with the convenience of a collapsible design that shrinks to nearly a third of its size when empty. Smart Collapsible Design Space Saving Technology: When full, it holds a generous 600ml of liquid. When empty, simply roll it up or collapse it down