Tervis mugs 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 these tumblers can take a tumble without shattering and won't retain tastes or odors. Microwave, freezer and dishwasher safe for no-worry convenience. Proudly made in America and backed by a manufacturer Lifetime Warranty so you can buy with confidence.