Stainless steel. Lightweight. Push/pour stopper. Keeps drink hot or cold. Thirst 75 X is the largest in the Trespass range of thermal flasks with a 750ml capacity (also available in 350ml and 500ml). Made from stainless steel, Thirst 75 X is lightweight and very durable, perfect for camping, hiking or even the daily commute and coffee stop. The flask is easy to use with a push/pour stopper. The wide mouth top also allows for easy cleaning and maintenance of the flask. This range of stainless steel flasks will your keep drinks hot or cold for several hours. The stainless steel also gives a polished and sleek look to the flask. Ref: UTTP582