Zojirushi Zojirushi 16 Oz. Stainless Black Mug

* 2-step lid release process prevents excess condensation on the stopper from being flung off while the lid opens * Tight-fitted flip-open lid keeps beverages hotter or colder * Safety lock to prevent the lid from opening accidentally * A special manufacturing technique was used to round the bottle opening, making it smooth and comfortable to the touch when cleaning * 1-5/8" (4cm) wide mouth opening * Made of BPA-free plastic and 18/8 stainless steel * Optional low-profile screw-off lid provides an alternative sipping style to flip-open lid (sold separately) * Stopper disassembles for thorough cleaning * Air vent on the mouthpiece allows beverages to flow out smoothly, without gushing or overflowing * Easy-to-clean double layer nonstick coated interior enhances durability, and provides greater protection of the stainless steel against salt-containing beverages like sports drinks * Lightweight and compact design *Rating is based on water at a starting temperature of 203°F (95°C) at a room temperature of 68°...