The Perka® Kempton Travel Mug has a large 40 oz. capacity and is light weight and convenient to carry with its ergonomic handle. The mug is made of 18/8 food-grade stainless steel and its double wall vacuum insulated construction and copper lining provide extra temperature retention to keep your hot drink hot for 18 hours and cold drink cold for 36 hours. It features a transparent lid with spill-resistant slide closure for hot drinks and a Tritan™ drinking straw for cold drinks and its large opening provides easy access for cleaning and adding ice. The Kempton mug has a sleek body shape that can be safely placed in most car cup holders and a high-quality durable powder coating to prevent scratches. FDA compliant and BPA Free.