This Masterchef vacuum travel flask has a stainless steel double wall, which makes it keep its content cold or hot for 24hours. Product features Liquid lock Stain-proof body coating 48 hours Hot and Cold 18/8 Stainless Steel Double wall Leak proof (Covenient Push-to-Pour Stopper) Odour free Elegant to carry (Including the shoulder strap for easy to carry) Unbreakable structure Comes with attached cup/bowl Ideal for carrying food, liquids, ice-cubes etc Air tight insulated cover maintains temperature Preserves flavor and Freshness