Thermal bottle with an interior made of AISI-304 stainless steel, commonly used in the food industry. This durable material ensures consistent performance over time. The exterior is made of AISI-201 stainless steel, which is lighter but has similar characteristics to the inner steel. The two layers of steel are separated by an air chamber that guarantees total insulation without dissipating the temperature of the liquid inside. The bottle can keep hot beverages at an ideal temperature for 20 hours and cold beverages for 10 hours. Volume: 500 ml. Materials: Stainless steel. Cold storage duration: 10 h. Hot storage duration: 20 h. Cap type: Screw cap. Airtight. Double wall. Does not contain: Bisphenol A (BPA). Height: 270 mm. Diameter: 7 cm.