Keep you coffee hot with a BUILT Cup Hugger in Dot No. 9. Use it everyday to keep your coffee hot or cold, whatever your preference. Perfect for your daily commute. Just keep it in your bag for easy access. Made of durable neoprene, the wetsuit material, that holds the temperature for up to four hours depending on external conditions. Measures 3-4/10-Inch by 4-1/10-Inch by 3-3/4-Inch. Machine washable. BUILT is a New York-based company that designs fashionable and functional bags, totes and cases for life on the go.