There is a new pad from SendyAudio themselves that they consider an “upgraded” pad for the aivas. It is a very similar pad that is perforated and slightly firmer and thicker.
I have a pair and it reduced the driver crinkle a bit, made them more breatheable and gave slightly more room for my ear, and did change the sound to be slightly wider and something else I couldn’t put my finger on, although I liked the stock pads a bit better.