Patch Measurement: The size of the fuzzy Velcro on most flight fits is four" x 4". A bigger patch will dangle from the Velcro and tends to get caught on just about every piece of fabric that you just wander by. We very endorse a maximum dimensions of 4” https://operation-inherent-resolv17160.pages10.com/the-smart-trick-of-operation-inherent-resolve-patch-that-nobody-is-discussing-61373102