GoBe is designing a lunch bag that will fit it perfectly. Stay tuned for that announcement in the next few months! Other than that, the Lunchbox doesn’t fit in most lunch bags. The only one we know for sure that it fits into is the Bentgo lunch bag. If you would like to check if it fits in your lunchbag, the dimensions are 8.5” (H) x 11” (W) which is the same as a full-size sheet of printer paper.