The collapsible cup is made of food-grade silicone – BPA Free. Capacity: 270ml. Foldable design and the portable hand strap suitable for pockets, wallets, backpacks, and suitcases. It doesn’t absorb flavors or smells, environmentally friendly, and reusable. They all come with lids that go on tightly, keeping contaminants out of your cup. Custom logo available.