Custom Tumblers & Travel Mugs, Patriot 30oz Tumbler - Insulated & Spill-Proof, Our best-selling 30oz. stainless steel tumbler was designed with the same functionality and design details you love about our classic 20oz tumbler, only Texas-sized. Don't worry, it's still cup holder friendly for your daily commute, and our tried-and-true spill-proof lid is tough enough to stop any unexpected Texas-sized spills. Spill-proof slider lid Maximum temperature retention Keeps drinks cold for up to 24 hours, hot for up to 12 hours Sweat-free exterior No-slip base Cup holder friendly Capacity 30oz Cup Holder Friendly Double-Wall Insulation Super Grip Sweat-Free Hot for 6 Hours Cold for 24 Hours ... #PT-30 $26.60/each.