Used about 8 times since purchase. Product Specifications: Material: Outer layer: PVC mesh cloth material Middle layer: Thick Mirra-mat Inner layer: Stain-resistant aluminum foil Size: 35*26*45cm Accessories: Adjustable T-shaped eaves Storage pockets on both sides: Large side pocket for storing wallets, smartphones, etc. Mesh pocket for storing water bottles, notebooks, etc. Divided design There are two adjustable divider plates, which divide the internal space into three sections, allowing you to carry multiple items. Not only does it effectively cool and keep items warm, but it also makes effective use of the internal space. Suitable for delivery services as well as general users. Can be used in various situations such as picnics, hiking, and barbecues.