These comfy underoos come with a nifty pouch for your packer! They arrive with their own "enhancer" which is a lightweight, foam cup that creates a bulge without using a packer. But you can remove the cup to use with your favorite packer instead if you prefer. These are not good with StPs as the pouch will prevent access.
Check out our friend Kade's review of these here (link takes you to YouTube).
Please note: these run small so get a size up. See pictures for sizing guide.