Finding the perfect water bottle is harder than Sudoku! (For those of us who find Sudoku... difficult.) Don't worry, we've got your back. This water bottle not only shows off your Detroit pride, it keeps drinks hot for up to five hours! This 32 ounce bottle is stainless steel, double walled, and vacuum insulated. Sip from the top during the day, and unscrew the larger piece for easy fill-up.