The Best Dinosaur Costumes For Adults

The dinosaurs have captured our collective imagination for generations. Whether you're obsessed with fossil-finding documentaries, ravenous for reptilian sci-fi dramas, or you just like to channel the energy of a monstrous lizard in your free time, these kooky costumes are a great way to wear your heart on your sleeve. With one of these outfits in your closet, you'll never need to stall again once Halloween comes around. We've gathered a few of our favorites together, so beware — you might be in for a fright.

What to Look For

Before you hop into your new suit of scales, you might want to bear a few distinguishing features in mind: Is it inflatable? Does it come with a separate headpiece? Are there several sizes available? Our favorite costume overall is the inflatable design from Rubie’s. This towering and terrifying suit is sure to strike fear into your fellow partygoers, thanks to its large, fan-inflated proportions. If you’re looking for something a little simpler for a snug night in, check out the cute dinosaur onesie from Silver Lilly. Read on below to discover the rest of our top picks.

Rubie’s Original Inflatable Dinosaur Costume

The bigger, the better

No one will miss your party entrance when you're wearing this ginormous costume.
Best Overall

Find on Amazon

Once you’re suited and booted in this full-body costume from Rubie’s, you’re sure to feel ready to roar. This larger-than-life outfit comes equipped with a battery-powered fan to blow its dimensions up to monstrous proportions so you can channel the power of the lizard king like never before. With these terrifying teeth bared and beady eyes watching murderously on, your friends aren’t likely to notice your face subtly hidden at the neck through the breathable mesh screen.

Pros:

  • This costume has separate glove pieces to cover your hands, which can be easily removed for manual tasks.
  • Thanks to the durable 100 percent nylon fabric, this suit can keep its shape for many wears.

Cons:

  • The fan requires four AA batteries, which aren’t included.

One Casa Riding T-Rex Inflatable Costume

Giddy up

Lead the charge as the bravest jockey in town with this hilarious waist-down costume.
Runner Up

Find on Amazon

Though any serious study of the archaeological records might put the notion of dinosaur cowboys to rest, you won’t have to convince your fellow partygoers of their existence once you waltz through the door wearing this showstopper from One Casa. And you can take the reigns in style with a camouflaged explorers hat and matching booties suitable for any dino-themed escapade. The movable T-Rex head is sure to provide hours of amusement — just be careful not to sweep all the drinks off the table with that tail wagging around behind you.

Pros:

  • We love that the inflatable air pump can be operated using either four AA batteries or a USB power bank.
  • This one-size-fits-all design is suitable for adults between 5.2 and 6.2 feet tall.

Cons:

  • Taking a short break to sit down might not be so simple in this costume.

Silver Lilly Dinosaur Onesie

Creature comforts

Settle down and relax in this deliciously snug onesie with a twist.
Most Cozy

Find on Amazon

Ah, the noble onesie. Soft and fuzzy, these one-piece classics are loved for their simplicity and enduring comfort. And who said the lizard kings have to be terrifying? With its cute design featuring a padded tail and spines, this reptilian disguise is unlikely to elicit any screams. Whether or not you’re looking for a Halloween getup or just a suitable outfit to nestle up on the couch for a dinosaur documentary marathon, this soft polyester suit is sure to keep you feeling snug.

Pros:

  • With the help of the full-body buttons down the front, it’s easy to get in and out of this costume.
  • You won’t have a problem wearing this onesie on top of most casual outfits thanks to the loose-fitting materials,

Cons:

  • Despite its soft fabric construction, this onesie isn’t machine washable.

Spooktacular Creations Full Body Inflatable Dinosaur Costume

Watch out, kids

This friendly and playful outfit is a great choice when the scare factor isn't a priority.
Best Cute Design

Find on Amazon

The T-Rex was a formidable foe, to say the least, but paying tribute to the mighty lizards of years gone by doesn’t have to be a scary affair. We love this cute costume from Spooktacular for its charming, cartoonish take on the king of the dinosaurs. With its friendly eyes and bulbous inflatable body, it’s sure to be a winner for kids’ parties or the like.

Pros:

  • The handy pocket located at the leg means you can safely carry the inflating fan as you wear this costume.
  • The drawstrings inside the suit will help you to keep it tightly secured to your body as you walk around.

Cons:

  • Given the size of this costume once inflated, we would have appreciated a larger fan.

Rubie’s Jurrasic World T-Rex Costume

Seeing is believing

Though it might not convince a veteran archaeologist, this hyper-realistic printed design is sure to terrify most.
Best Lifelike

Find on Amazon

While theories vary as to what the dinosaurs actually looked like when they roamed planet Earth millions of years ago, this striking Jurassic World costume from Rubie’s brings a lifelike realism that’s sure to catch some eyes. With detailed scale patterning printed on silky polyester, you won’t find many costumes that look closer to the real deal than this. This beastly look is made complete with a terrifying headpiece that’s sure to spark fear in the heart of your next potential meal.

Pros:

  • We appreciate that several size options are available to suit a range of body types.
  • These soft claw foot pieces can be worn on top of most average-sized shoes.

Cons:

  • The Jurrasic World logo on the back side slightly undermines the hyper-realism of this costume.

Frequently Asked Questions

How can I wash my dinosaur costume?

Whether you’ve covered your costume in the grizzly remains of your latest prey, or just a little muck and mess from last year’s Halloween party, keeping it squeaky clean will ensure you look at your best. With so many moving parts and delicate details, these costumes aren’t suitable for machine washing. Most can be hand-washed using soapy water or the like, but be sure to read the label before you try to avoid unintentional damage.

Why does my costume come with a fan?

Inflatable costumes are all the rage these days. With dynamic proportions that cloak your frame beneath, they can transform you from an average Joe into a terrifying T-Rex in no time. Most inflatable costumes come with a fan included for filling the costume as you wear it.

About the Author

Living in the fashion-forward city of London, Jack is always keen to absorb the latest looks. He typically prefers classic styles, like corduroy pants and Italian coats, but anything is fair game. He believes we all deserve to look our best. But so many choices in the world of fashion, Jack wants to help people find the coolest looks at the best prices.

Why Trust Us

Since 2001, our experts at TheFashionSpot have been providing millions of people with our take on the latest trends. TheFashionSpot is constantly looking for the hottest styles in clothing and accessories for people of all body types. Our team knows that beauty starts well before the closet, so we are also dedicated to finding the best products for your skin and hair.