Hydro Flask 16oz Coffee Wide Flex Sip LidThis durable flask is made from double walled stainless steel and is designed to protect the temperature of drinks for hours, whether hot or cold. The leak free design is ideal for taking wherever you want to go with your favourite drink so is perfect for when you need your coffee on the go. Leak proof lid Flex strap Easy to transport; comfortable to carry Smooth flow opening Fits under most coffee brewing systems Use at coffee shops for less paper