The rugged Manna™ 20 oz. Renegade double wall stainless steel tumbler with a silicone grip is a perfect gift, easy to use and comfortable to hold. This vacuum insulated tumbler will keep your sweet iced tea cold for 10 hours in the summer and your warm coffee warm for 8 hours in the mornings. It has a removable drinking lid with a slide closure and is FDA compliant and BPA free.