Comm pad is made in Shore A Silicone, a flexible and soft material. Colors are pigmented so they won't scratch/wear off.
Item naturally curves to shape of wearer, and doesn't hurt in the pocket like a resin or ABS one can.
While the movie used props were vacuum formed plastic, these silicone prop replicas are much more resilient for your costuming event needs. They're accurate in dimension to movie items.
This is the "classic style" and might not match all 501st CRL guidelines. If you're looking to make a TIE pilot, check out the "New Version"!