IE University limited edition “Embrace diversity of thought”.Triple Cool™ Technology: drinks 36 hours cold and 18 hours hot.Super-rubber finishing.Airtight: leak-proof cap.18/8 food grade stainless steel.Completely free of BPA, phthalates and toxins. Suitable for acidic and carbonated drinks.Does not retain or emit any taste or smell. Condensation free: won’t sweat on your hands. It allows to overcome security controls in airports. Hand wash only.