Description The aptly named 10 oz. Perfect-Fit Tumbler embodies its name: Its design fits perfectly with most coffee brewing systems, including Keurig, and is the same size as a Starbucks "Tall." Thanks to vacuum-insulated technology, drinks stay warm for up to 6 hours. A flip-top lid prevents spills and offers hassle-free portability. Choose this drinkware style and users will see your logo daily.