Material: scuba diving material Before placing an order Durable and Easy to clean, Heavy duty zipper and the neat stitching make the lunch tote sturdy enough, the lunch bags are Stain-Resistant and easy to clean, machine washable and it will never fade. Reusable and Eco-friendly, the insulated lunch tote helps protect the environment by using less paper of plastic bags, it can be folded flat to store while not in use. Multi-function, the large insulated tote bag not only can be used for office or school lunch tote, it also can be used as Picnic tote bags, Sundry bag. It has heat /cold/fresh preservation, can be used to pack frozen food, hot pot dishes, frozen drinks, ice cream, etc. Lifetime Guarantee, if you are not satisfied with the lunch tote, 100% money refund guarantee and replacement warranty.