Promote your brand effectively with custom collapsible water bottles. These popular promotional products are a unique way to spread your company message and connect with customers. Custom reusable collapsible or foldable water bottles are designed to hold water or liquids when expanded, and collapse when empty for easy transport. They are made of plastic or silicone, and models include water bags or glacier bags. These novel personalized gifts make perfect handouts at company sponsored events, expos, fairs, and more.