Thermos - Stainless King Flask Army - 0.47L (23579). Thermos bottle Stainless King 470 ml - Army Stainless steel Thermos Stainless King 470 ml thermos in stainless steel. The lid can be used as a cup, and the bottle is suitable for both cold and hot drinks. Keeps contents warm for up to 18 hours and cold for up to 24 hours.