This travel mug is designed to make staying hydrated and maintaining a healthy lifestyle wherever you go even more appealing. A double-walled, vacuum-insulated body is made of 18/8 stainless steel which insulates cold drinks for up to 24 hours and hot for up to 6 hours, keeping them as fresh as any-purchased option. The double wall also means the exterior will stay a comfortable temperature to hold, while a sturdy Tritan lid easily slides open and closed for one-handed drinking. This striking travel mug is charcoal black with a stunning metallic finish, making it a stylish piece as well as functional. Perfect for taking smoothies, herbal teas or any hot or cold refreshment, this travel mug is ideal for taking with you for a nourishing boost in the car, on the commute or anywhere on the go. The travel mug is suitable for a standard size cup holder and is BPA free for peace of mind. Capacity: 590ml/20 fl oz. This 20oz vacuum insulated tumbler is strong and durable as well as stylish and innovative.The lid is formed from BPA free tritan plastic and has perfect seal technology to prevent leaking and spilling.The lid pushes in and twists for a firm seal with a slide lid for easy sipping.The bottle itself is made from double walled stainless steel for keeping both hot and cold drinks at optimum temperature for taking on the go or a busy commute.The insulated bottle fits into most cup holders and is finished in a stylish charcoal grey.