Looking for an eco-friendly water bottle that doesnt weigh down your bag? que Bottle is a collapsible, reusable water bottle that is perfect for your everyday adventures. The bottles patented design shrinks the bottle to half its size when not in use, making it lightweight and compact. que Bottle is 100% plastic-free, BPA-free, non-toxic and made of food-grade silicone that is taste and odor free. Once the stainless steel cap is twisted on, the bottle is leakproof and shockproof.