SAFETY AND DURABILITY：Made of 100% non-toxic bpa-free plastics & premium food-grade 18/8 stainless steel, protecting the mug from oxidation and flavor transfer.
VACUUM INSULATION：The double wall vacuum insulation will ensure that your beverage of choice maintains its temperature for many hours to come.
LEAK-PROOF & SPILL-PROOF：The special designed vacuum screw closing lid is leak proof and has a heavy duty thread to help it stay firmly attached. It’s completely airtight to keep your beverage fresh without any worry of spills.
USER-FRIENDLY DESIGN：It’s narrow, sleek body fits in standard cup holders making the mug convenient for taking it to work, school, to the gym or traveling.