Choose the size of your suit based on how much padding you want. A 3-pack of packing peanuts will make a small suit, while a 6-pack will create a larger suit.
2. Fill the suit with packing peanuts until it's to your desired size. Make sure to seal the opening of the suit by tying a knot in the open end.
3. Let the suit sit overnight so that it can form its own shape and insulation.