Padded Muscle Costume Shirt for Kids
Small Moments,
Monster Memories
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Muscles on Demand—No Pushups Required
Let your little one flex their superhero swagger with the Kid’s Padded Muscle Shirt! Whether they're transforming into a caped crusader, a mighty wrestler, or the world’s youngest bodybuilder, this costume piece delivers instant muscle power—no gym membership necessary.
All Strength, Zero Sweat
Crafted from lightweight polyester, this padded shirt is stuffed with polyfill to create the look of a seriously ripped physique. Defined abs, sculpted arms, and bulging biceps are all printed and puffed into place, giving kids the look of total muscle mastery. It slips on easily and fits comfortably, making it perfect for Halloween, school plays, costume parties, or just flexing in front of the mirror at home.
Imagination Gets a Power Boost
With bold, printed shading that mimics real muscle tone and definition, this shirt gives kids the heroic edge they need to take their costume to the next level. It pairs great with any costume that needs an extra dose of strength—whether it’s a superhero suit, gladiator gear, or an over-the-top action figure look.
Lightweight and Ready for Action
Despite the bulked-up appearance, this shirt stays lightweight and breathable, so kids can run, jump, and play like the heroes they're pretending to be. The soft materials and flexible fit mean no restricted movement—just all-day fun and larger-than-life poses.
For Kids Who Dream Big (Muscles)
The Kid’s Padded Muscle Shirt is the perfect costume base for any child who wants to go big—literally. Add a cape, a mask, or even a pair of stretchy pants, and watch your child become the strongest character on the playground. Because when it comes to imagination, bigger muscles mean bigger adventures.

We believe that costumes have the power to create some of life's best moments. That's why we started Made by Us. This diverse selection of costumes and accessories are all artfully designed and expertly crafted by our talented team of artists, designers, and developers.

Each project begins with a passion for true quality–embroidered patches, faux fur cut with care, and hand-selected fabrics that are as durable as they are comfortable. Those are just a few examples of how much craft and creativity we put into each and every product. Just for you.

No matter how much time it takes, our goal has always remained the same–to create products that inspire your life's best moments–the big, the small, the funny, the spooky, and the sweet. The moments we all cherish. That's Made by Us.