The insulated bags are pretty big (Size: 16 x 12.5 x 9 inches). It can hold 24 bottles of 500ml Cola.Great for food delivery and grocery shopping.The insulated bags has three layers of insulation(High quality aluminum foil; Thickening thermal insulation foam; High density fabric) It comes with two zippers. Stuff will not fall out. Zippers can be reused more than 1,000 times..The insulated bags can hold up to 60 pounds of weight. The quality is good and durable.It can be reused more than 1 year.