This Signature Swig Life™ 18oz Mug in Palm Springs is perfect for when you need to drink their coffee or tea on-the-go. With double-walled, vacuum-sealed, copper-coated insulation, this stainless steel travel mug keeps drinks cold for up to 9 hours and hot up to 3. Each Signature Swig Life™ 18oz Mug comes with a BPA-free, spill-resistant and shatterproof SEAL-TITE Tritan lid that seals tightly with a rubber gasket. And to further minimize spilling, the straw-friendly opening can be covered with the sliding closure. This travel mug also features a non-slip silicone base that keeps your mug from slipping or tipping, keeping its contents good to the last drop!