Stay hydrated on-the-go when you purchase a set of this FDA Approved and BPA Free 30 0z. Stainless Steel Tumbler that is made of double wall insulation, keeping your drinks hotter and colder for a longer period of time. It is vacuum insulated with a snap-on lid that is secured with a spill-resistant feature. Its design details also include a straw hole with a matching straw. Only handwashing is recommended for this product.