Carter thermos mug with sliding lid 35 cl from Fellow is made of stainless steel 18/8 and has a BPA-free plastic lid. The uniquely angled lid glides open easily with a thumb press for convenient coffee breaks on the go, and closes just as easily to keep heat and flavor in. With its double wall insulation, it keeps the beverage hot or cold for up to 6 hours. The slim design fits perfectly in the car's cup holder and is compatible with your favorite pour-over.