The Manna™ Boulder 14 oz. double wall handled stainless steel camping mug has a pressure-fit lid with sliding closure. Take this mug on your next outdoor adventure as it is vacuum insulated and will keep your hot tea hot for 8 hours and your ice-cold water cold for 12 hours. It is excellent for home use as well, and compatible with most single serve coffee machines. The Boulder is FDA compliant and BPA Free.