Roseelk Small 23L Insulated Cooler Bag, 11.2" X 7.7" X 16.2" (29cm X 19cm X 42cm), Soft Cooler Bag with 4 Layers of Insulation, Waterproof, Durable,

[Insulated Backpack Details] External dimensions: 29cm (L) x 19cm (W) x 42cm (H). Can be used in three ways: handheld, horizontal, or as a backpack. Lightweight, even for women. [4-Layer High-Quality Material] The outer layer is made of Oxford cloth, while the inner layer is made of thickened EPE foam, non-woven fabric, and high-quality PEVA. It effectively blocks heat from the outside and keeps the internal temperature low for a long time. When used with 4-6 ice packs, it can keep drinks cold for 10-20 hours. It is waterproof and leak-proof, even when melted. It is strong and durable. [Excellent Waterproof Performance] The outer layer is made of water-repellent Oxford cloth, and the lining is made of waterproof aluminum sheet. Ice is placed inside to prevent leakage even when melted. It can be washed with water. [Foldable] Unlike ordinary coolers, this cooler is foldable. It is compact, easy to carry, and takes up little space. It's also very convenient to put in your cart. [Usage] Suitable for a variety of occasions, including family picnics, outdoor activities, camping, fishing, barbecues, and cherry blossom viewing. You can also fill it with water or ice to enjoy ice-cold beer on a hot summer day. It can also be used as an emergency storage bag in the event of natural disasters such as earthquakes and typhoons.