Stainless Steel Vacuum Insulated Coffee Tumbler

MC0984

Double-layer inner and outer 304 18/8 stainless steel cup + vacuum insulation layer to ensure insulation performance. Non sweat outside. Retent heat or cold throughout your sleep time or busy working hours, which ensure your drinking experience.The seal ring around the lids has been redesigned. The silicone on the top of lid seal tighty. When sipping, no liquid leaks from the lid except for the sipping hole. NO LEAK OCCUR. Meantime, the tight lids further enhances the thermal insulation.Unlike other brands who use inferior 201 stainless steel (non-food grade) on the outer layer. The inside and outside of our insulation tumbler are made of food-grade 304 18/8 stainless steel and the lids are made of non-toxic, bpa-free food grade materials.