Patch Measurement: The size in the fuzzy Velcro on most flight satisfies is 4" x four". A larger patch will hang from the Velcro and tends to get caught on pretty much every bit of cloth which you walk by. We really advocate a highest dimension of 4” tall https://rylaneeffd.theideasblog.com/26208144/operation-inherent-resolve-campaign-no-further-a-mystery