T-Flasks High Grade Double Layer Vacuum Flask Stainless Steel 500 ml 16 oz Briefcase Bottle Thermos Hydration Tumbler with Attachable Mug for Hot & Cold Beverage(s) This super slim 500 ML 16 oz stainless steel bottle keeps liquids Hot or Cold for above 8 hours. A must item for every home and office. Wide mouth opening convenient to accommodates ice cubes. Stylish contoured design with no rough edges compact, easy to carry and use, suitable for every one Twist : in stopper with O-ring seal, Prevents leakage. The bottle cap can be taken apart to wash. Unbreakable stainless Insulated liner (that means no glass inside) unbreakable stainless steel body outside. Eco-Friendly, BPA Free