Boys Letter "K" Costumes

Kick start your child's next adventure with our bold and imaginative collection of boys’ costumes starting with the letter K. Perfect for Halloween, school events, themed parties, or everyday dress-up fun, these costumes are all about action, character, and creativity.

Let your little hero transform into a fearless knight, ready to defend the kingdom in shining armor and medieval style. For those who love martial arts and stealth, a sleek karate kid outfit brings energy and discipline to the scene. If your child is into quirky characters, a playful kangaroo costume adds a fun and unique twist to any event — complete with tail and pouch!

Every costume in the letter K collection is designed for comfort, movement, and storytelling. Whether they’re fighting dragons, earning a black belt, or hopping into character, these costumes help boys step into powerful roles and make every moment unforgettable.