Irocolle Fabric Yume-kawa Lunch Bag! The opening is zippered, and it uses a washable cooling/heating sheet. It has a handle, so you can hang it on a desk hook or a stroller. "Cooling/Heating Sheet" made by layering durable mesh fabric, cooling/heating processed sheet + non-woven fabric, and polyester wadding, and then quilting them. The air layer created by the fluffy polyester wadding and the cooling/heating processed sheet keep the warmth and coldness. The cooling/heating sheet is washable. Perfect for lunch bags that you want to keep clean at all times. With its ideal size, it can be used as a bag-in-bag or a handheld bag. From children who eat small portions to children who eat a lot. You can use it for a long time to hold side dishes or snacks. It is also easy to use as a sub-bag or eco-bag, and can be folded compactly and used as an eco-bag. It's washable, so you don't have to worry about getting it dirty! You can wash it and keep it clean. *Water wash (gentle wash) OK!! Do not use a dryer (tumble dryer). [Lunch Box Size in the Photo] ● 10cm long x 18cm wide x 6cm high ● Capacity 500ml [Pet Bottle Size in the Photo] ● 500ml [Material] Outer fabric: Seersucker/Oxford fabric Lining: Washable cooling/heating sheet Conceal zipper [Size] 23cm long x 32cm wide x 10cm depth Handle 30cm #CoolingHeating, #LunchBag, #LunchBag, #Unicorn, #YumeKawa, Zipper