Boys of different ages are huge fans of the Transformers series. Let the inner robot come out and dress your little one in our great looking Transformer fancy dress costumes. The Child’s Bumble Bee Transformers outfit includes a yellow, black and silver jumpsuit, detachable chest piece and a mask with eye and mouth holes. The Child’s Optimus Prime Transformers costume, on the other hand, includes a red, blue and silver jumpsuit, detachable chest piece and a mask. These costumes come in three different sizes to suit various age groups and are suitable for children aged 3 to 10 years.