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Demo Monster

Demo Monster

 (146+ Reviews)
$63.00
$63.00 $77.00
SAVE 18% Sold out

🐾 Soft, stretchy fabric — stays on squirmy dogs

✅ Breathable material — safe for all-day wear

🌟The Gift Dog Parents Actually Want

Low Stock – Only 7 Left!
Demo Monster

Demo Monster

$63.00
$63.00 $77.00
SAVE 18% Sold out
  • files/person-sits-on-their-couch-next-to-their-dog.jpg

    Fits well doesn’t restrict movement. My pup loves the attention!

    Jessie
  • files/man-sitting-in-city.jpg

    Bought for a costume contest we won. Soft inside, durable outside.

    Justin
  • files/real-dog-stuffed-dog.jpg

    My dog looks terrifying in the best way. Perfect for Halloween, super comfy fit!

    Sarah
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    Will it fit my dog?

    We offer sizes XS through XL to fit almost every breed. Use our size chart above to measure your dog's neck circumference, chest width, and back length before ordering. When in doubt, size up — the costume is designed with a little stretch so it moves naturally with your dog.

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    Will it arrive on time?

    Yes, your costume will arrive with time to spare. We ship as soon as processing is completed and provide full tracking so you always know where your package is. Need it faster? Add "Skip The Line" above for priority fulfillment.

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    How does it stay on?

    The Demo Monster uses a secure Velcro closure system that wraps around your dog's body without restricting movement. It's been tested on squirmy dogs, hyper dogs, and dogs who would rather be literally anywhere else — it stays on—no clips, no complicated straps, no adjusting every five minutes.

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    My dog hates wearing things — will this work?

    Most dogs who "hate" costumes hate them because they're uncomfortable, stiff, or restrictive. The Demo Monster is made from soft, breathable, stretchy fabric that feels more like a cozy layer than a costume. We recommend putting it on at home first and rewarding with treats so your dog associates it with something positive. Most dogs forget they're even wearing it within minutes.

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    What if it doesn't fit? Can I return it?

    Absolutely. If the size isn't right, contact us within 30 days of delivery, and we'll sort out an exchange or a full refund — no hassle, no drama. We want your dog looking perfect, not you stressing over a return policy.

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    Breed recommendations

    The Demo Monster was designed to look incredible on a wide range of breeds. Here's a general guide:

    XS — Best for:

    Chihuahuas, Yorkies, Pomeranians, Toy Poodles, Maltese

    S — Best for:

    French Bulldogs, Shih Tzus, Pugs, Miniature Dachshunds, Cavalier King Charles Spaniels

    M — Best for:

    Beagles, Cocker Spaniels, Border Collies, Miniature Schnauzers, Whippets

    L — Best for:

    Labrador Retrievers, Golden Retrievers, Boxers, Siberian Huskies, Standard Poodles

    XL — Best for:

    German Shepherds, Rottweilers, Bernese Mountain Dogs, Great Danes, Mastiffs

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    Don't see your pup?

    Don't see your pup breed? Here's a simple rule: if your dog is between sizes, always go one size up. The costume is designed with stretch so a slightly larger size will look just as good and feel more comfortable.

    Still unsure? Send us a photo of your dog and we'll tell you exactly which size to order.

    View full details

    The Internet's Favorite Dog Costume

    The costume that turns a walk around the block into a full-on neighborhood event.

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    Goes Viral Every Time

    Dog parents have racked up millions of views in this costume. Yours is next.

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    Sizes for Every Breed

    From Chihuahuas to Golden Retrievers — there's a perfect fit waiting for your dog.

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    Stays On — Actually

    Velcro closure designed for wiggly dogs. No adjusting, no falling off, no ruined photos.

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    Makes a Perfect Gift

    Know a dog parent? This is the gift they didn't know they needed — and won't stop talking about.

    Loved by Hundreds of Dog Parents

      90 DAY MONEY BACK

      If your product arrives damaged or defective and you want to return it, you have 90 days to request a refund.

      Customer Reviews

      • Won The Costume Contest Without Trying

        “Showed up to our dog park's Halloween event last year and the judges literally laughed out loud. First place. It wasn't even close..”

        Daniel M.

      • The Whole Neighborhood Came Outside

        “I didn't expect the reaction we got. Kids were screaming, adults were dying laughing, and my dog Max just sat there like a king. Worth every penny.”

        Johnson T.

      • Setup Was Surprisingly Easy

        “Slipped it on in under a minute, and it stayed on the entire walk. Nova didn't fuss once; I think she knew she looked incredible.”

        Joan B.

      • My Pup Was Born For This Role

        “I've tried 4 different costumes over the years and they always fall off or make her uncomfortable. This one stayed on perfectly and she was actually happy wearing it. The photos came out insane.”

        Rodney L.

      • Stopped Traffic. Literally.

        “Took Ranger for his morning walk, and three cars slowed down to take photos. One woman screamed and then immediately asked for the link. Best purchase I've made all year.”

        Samantha R.