One of the biggest differences in this and using one of the pouch designs, Floater or Snuggler, is that your packer is against your skin. You can choose whether you will use this for your packer or for a STP. The design is a bit different and more detailed for STP use, as well as the underwear will have access from the front of the fly using the STP type harness. These are not made for pack and play, the cotton underwear is not strong enough to hold the harness for this use. We do have a Dildo harness that can be for pack and play.
2XL-5XL is only available in Asst colors. We cannot guarantee particular colors. Please list favorite in comments and if we have the color you list, we'll make it from that item.