The 24oz 24oz Cold Tumbler with Straw & 16oz Travel Tumbler Bundle - Granite from Thermos® uses double-wall vacuum insulation technology to maintain temperature wherever your day takes you. BPA-free construction. Backed by the Thermos® warranty. Specifications: 24oz capacity | Double-wall vacuum insulated | BPA-free Stainless Steel | Straw Lid | Dishwasher safe — top rack only Shop more Thermos® Bundles or explore the Icon™ Series . Shop all Thermos® bundles or explore the Icon™ Series and Stainless King™ collection .