This 24oz classic water bottle features a single-latch flip lid with a loop for easy carrying, and slim bottom to fit some bicycle cages and backpacks. A large lid opening makes it easy to add ice cubes and the bottle features graduation marks for convenient measuring and mixing. The?black Field Museum logo is sealed between the tumbler walls. Tervis tumblers feature double-wall insulated construction that keeps drinks hot or cold longer and reduces condensation to prevent rings on your table. Strong, impact-resistant BPA-free material means this water bottle can take a tumble without shattering and won't retain tastes or odors.