Searah says "Below you will find a variety of items designed for Packing. Made of many different materials, they all have their pluses and minuses. If you want to see how they compare, you can click here for some more info (it will take you to our blog). And if you want to jump right to the items that can be used for Packing and Playing, click here. Whatever you do, make sure you have a good harness or underwear to them in place! "