Hi Val1234, Thank you for sharing your feedback. We're sorry to hear that the Bentgo Chill Max lunch box didn’t meet your expectations and didn’t fit your child’s lunch bag. We know how important convenience and compatibility are for busy parents and little ones. We’d love the chance to make this right and help you find a better match—we offer a variety of lunch box sizes and styles to suit different needs as well as list the dimensions of our boxes on the product pages, which can assist in selecting the right size for your needs. Please feel free to reach out to us at (657) 275-3738 or support@bentgo.com. We’d be happy to assist you! Thank you again for your input, and I hope we can help you find a lunch box that better suits your needs. Thank you, Jessica Bentgo Support