Thank you for viewing. This is a set of two checkered cooler bags, brown and blue. They are perfect for shopping or carrying lunches. The exterior is made of thick, water-repellent material, and the interior is aluminum-coated. The opening has Velcro to seal tightly and prevent cold air from escaping. Size: Approximately 27cm x 23cm x 11.5cm (10.6in x 9.1in x 4.5in) I've only used them a few times, but they have wrinkles and some fading on the surface due to long-term storage (see image 5). Please consider purchasing if you understand this. Thank you.