This tumbler with straw holds 20 ounces (591 ml) and is only suitable for cold beverages. Our Kate Spade New York Bookshelf insulated tumbler features a double wall design that keeps contents cool and your cup free of condensation. This travel tumbler features a slim design that is easy to carry and fits in most standard cupholders, and the lock-tight lid easily screws on/off and allows for a mess-free commute. It also includes a non-breakable, reusable straw that is durable for all your days on the go.