Two functions - This insulated bag keeps hot well for 2-6 hours and also cold depending on the different temperature Large Capacity - Dimension: 24x22x16cm; Ability : 8L. This lunch bag is ideal for students, employees and mums to carry lunch High Quality Material - Double layer fully insulated and waterproof lining: 600D Oxford + Insulation Cotton; YKK closure: a zipper that allows easy access inside, high quality Practical Design - At the top there is a handle and a compartment that can be dismantled and separated to expand the space to put the bottle and the dishes; On the outer side there is a shoulder strap; On the front there is a pocket and behind a mesh pocket to take some daily small things Multifunctional - Applied in various occasions than daily life: school, office, travel, vacation as workout outing at the picnic, etc.