This year, our 5 year old wanted to be Batman for Halloween.  This costume in a child's small is the perfect size for our 5 year old and he looks so cute in it.  It has nice details like the mask, small cape (much smaller than in the adult picture), and nice plastic belt.  The muscles of the chest piece also look great.  He loves the outfit and has been wearing it frequently leading to fraying of the back of the costume where the velcro pieces are.  But overall, a great buy.