Preteen Costumes from Fierce Costumes - Choose from our gigantic selection of classic costumes, characters and styles of Preteen costumes. We have everything from Cuddly Animals to Sports to Holiday to Military Preteen Costumes and everything in between! Our most popular Preteen costumes are our Champion Boxer Costume, Referee Costume, and our Army Camouflage Costume. Whether you're looking for something scary, something nostalgic or something downright funny, you'll find it in our Preteen Costume category. Our Preteen Costumes will fit children aging from 12-16 years old.