The Superb Sippy Tumbler is not just another plastic sippy cup; it features a flexible, bendable, re-usable silicone straw! The inner body straw is made of Tritan™ to ensure it performs continuously day after day. The tumbler stays cold for up to 24 hours or hot for up to 12 hours because it is made of copper lined, double wall vacuum insulated 18/8 stainless steel. It is ideal for everyday use at home, school, or office.
