Fifty/Fiftys Insulated Drink Bottles are designed to keep your drink refreshingly cool or toasty warm all through the day. Theyre made of lightweight, durable stainless steel. That steel is recyclable, and doesnt leach taste or odor to give you that metallic taste. The double-walled drink bottle design stops condensation from forming on the outside of the bottle, so you dont need to worry about your hands or car seat getting wet. Perfect for having a cuppa after a morning bushwalk.