Halloween Costume for Teens: Suits & Onesies

Home
Halloween Costume for Teens

32 products

Sort by:

Teen wearing purple teen boys suit with a The Joker theme and green buttons. Further he is wearing a green tie and a white shirt. Hands in pockets of pants.

Sonic the Hedgehog™ Kids Onesie

$49.99

(20 reviews)

Teen wearing formal multi color suit with all-over Pokemon print. The suit contains the characters Pikachu, Bulbasaur, Charmander and Squirtle. Kid stands with hands in pockets.

SpongeBob™ Frenzy Teen Boys' Suit

$114.99

(3 reviews)

Kid is wearing a red onesie resembling Elmo. He has his right hand in his pocket.

My Little Pony™ - Firefly Kids Onesie

$49.99

(20 reviews)

Child wearing a colorful Patrick onesie with a hood on a white background

My Little Pony™ - Bluebelle Kids Onesie

$49.99

(20 reviews)

Child wearing a Superman-themed onesie with a red cape on a white background

Halloween Costume for Teens: Licensed Suits and Onesies Sized 10 to 16

This Halloween costume for teens collection is built for older kids, ages 10 to 16, who want something more distinctive than a store-bought mask-and-cape set. It brings together two product types in one place: Teen Boys' Suits, tailored costume suits modeled on popular characters, and licensed onesie designs that go all the way up to a 14-16Y size. Whether a teen wants to show up to a school dress-up day looking sharp or wants a full-body character look, this collection covers both.

Why Choose OppoSuits for a Teen's Halloween Costume

Two costume styles in one collection: Teen Boys' Suits for a tailored, character-inspired look, and onesie designs for kids and teens who want a full-body costume.
Sizing for older kids: Teen Boys' Suits are available in US 10Y, 12Y, 14Y and 16Y, and the onesie designs in this collection are offered up to a 14-16Y size, so both product types fit the 10-16 age range.
Officially licensed designs: Characters from Pokémon™, Sonic the Hedgehog™, Super Mario™, My Little Pony™, SpongeBob SquarePants™, Minecraft™, Sesame Street™, DC Comics™ and Avatar: The Last Airbender™, alongside OppoSuits' own bold, printed suit designs.
Comfortable for a full day of wear: Suits and onesies are made to be worn for hours at a school party, a trick-or-treating evening or a family gathering, not just a few photos.

Good for These Occasions

Halloween parties and school dress-up days
Trick-or-treating with friends
Family or group costume themes, paired with matching kids' or adult sizes
Costume contests where a character suit stands out from a generic costume

What to Know Before You Buy

A few things are worth checking before choosing a size or style for a teen's Halloween costume:

Sizes	Teen Boys' Suits: US 10Y, 12Y, 14Y, 16Y. Onesie designs in this collection: up to 14-16Y. Check each product page for its exact size chart before ordering.
Materials & care	Care instructions differ between the suits and the onesies, so check the specific product page for washing and material details rather than assuming one instruction applies to both styles.
Licensed designs	Character suits and onesies are officially licensed, so the print, colors and detailing match the source character.
Delivery	Delivery estimates are shown at checkout based on your address, so you can confirm timing before Halloween.

Suits or Onesies: Which Fits a Teen Costume Best

The two product types in this collection serve different looks. A Teen Boys' Suit (examples: Pokémon, Super Mario, SpongeBob Frenzy, Minecraft) is a tailored jacket-and-pants set, styled after a character but worn like a suit, so it works well for a teen who wants a costume that still looks put-together at a school event. The onesie designs (examples: Sonic the Hedgehog, My Little Pony, Cookie Monster, Superman) are full-body character costumes, and in this collection they're offered in the larger 14-16Y size, making them an option for teens who want the head-to-toe character look rather than a suit silhouette.

Looking for something else for the family? See the Halloween costumes for kids 2-8, browse Halloween outfits for the whole family, or check the wider range of Halloween onesies for younger sizes.

What ages does this Halloween costume for teens collection fit?

This collection is aimed at ages 10 to 16. Teen Boys' Suits come in US 10Y, 12Y, 14Y and 16Y, and the onesie designs here are offered up to size 14-16Y. For younger kids, see the separate collection for ages 2 to 8.

What's the difference between a Teen Boys' Suit and a onesie costume?

A Teen Boys' Suit is a tailored jacket-and-pants set styled after a character, so it looks more like formal wear with a costume print. A onesie is a full-body, one-piece character costume. Both are available in sizes that fit ages 10 to 16 within this collection.

Are the character designs officially licensed?

Yes. The licensed characters in this collection include Pokémon™, Sonic the Hedgehog™, Super Mario™, My Little Pony™, SpongeBob SquarePants™, Minecraft™, Sesame Street™, DC Comics™ and Avatar: The Last Airbender™, in addition to OppoSuits' own printed suit designs.

Is there a Halloween costume collection for younger kids?

Yes, a separate collection is available for kids ages 2 to 8. See Halloween costumes for kids for that age range.

How do I make sure a suit or onesie fits before ordering?

Check the size chart on each individual product page, since Teen Boys' Suits and onesie designs are sized differently. Matching age to size isn't always exact, so the product's own size chart is the most reliable guide.