First of all this is a real jumpsuit. and the size is really small - so keep in mind that it is very tight and your kids must be small for it to even fit. You also need to make it as big as possible if you live in a cold place so your kids don't get cold. The largest size is a bit small for my son but he is willing to put up with the inconvenience of raising his arms as the fright factor is so high. That being said, my 11 year old son LOVES to stand anywhere and scare someone to death. Totally effective. A few years ago he was a werewolf and was "beaten up" on Halloween by a two-year-old kid with a glow stick who was protecting the world from evil. He can't wait to see how the fear factor holds up!