Pirani Tumblers were designed as a long-lasting alternative to single-use cups – perfect for anyone who cares about sustainable sipping. Perfect for the healthcare pro on the go, Pirani Tumblers keep your coffee or tea hot up to 6 hours, smoothies or water cold for up to 12 hours, and a food-safe stainless-steel interior means flavors don’t transfer, so you can use it for any and every beverage. A conversation-starting look (is that a Solo cup?) and a variety of color options give you a unique way to get your caffeine on the go. Dishwasher safe, lightweight, and stackable!