More fuel, fewer refills. This 2-pack of Rift Tumblers in 16 oz is designed for long days, shared brews, or keeping an extra on hand. With double-wall vacuum insulation, 100% leakproof VaultLoc™ lids, and recycled stainless steel construction, these tumblers are built to handle daily use or weekend escapes. Fits in most cupholders and keeps drinks hot or cold for hours. Dishwasher safe and BPA-free.