Rambler 30 oz. Tumbler in Seafoam Days on the dock are made better with the Rambler 30 oz. Tumbler. Itll keep your dinnertime drink cool well past sundown or your coffee nice and hot throughout the morning. The Rambler 30 oz. Tumbler is made of 18/8 kitchen-grade stainless steel has double-wall vacuum insulation and No Sweat Design. Which means that youve got one heavy-duty over-engineered tumbler on your hands with the Rambler. Its dishwasher safe BPA-free and ready for just about anything. You can pick the YETI DuraCoat Color to fit your gear - Rambler Tumblers are available in Tahoe Blue Seafoam Olive Green and Black. The YETI 30 oz Rambler Tumbler stands 7 5/8 in high and has a lip diameter of 4 in. All YETI Tumblers are sized to fit in standard sized cup holders.