SWISS+TECH insulated can cooler uses highly durable 18/8 stainless steel which has a higher corrosion and oxidation resistance than regular steel while preventing odour and is easy to clean. The cooler will keep your drink icy cold for a very long time! The double wall, copper lined, vacuum sealed walls provide exceptional thermal insulation, while ensuring a sweat free exterior. This is the ultimate drink cooler that you didn't know you needed!