Although it's new and unused, there are black specks on it. It's not rust!! This is a drink bottle with a cover featuring the Land Rover logo. The lid of the drink bottle has a common one-touch open/close switch. I removed it for the first time to take photos. There are no instructions, so I don't know the details of the material or the heat/cold retention function. It looks like it's made of stainless steel. Please check the photos and understand before purchasing. Capacity...350-499ml (estimated by the seller, not measured)