• Man and Woman wearing red and blue, Unisex Adult Onesie with Super Mario theme. Onesie resembles the Super mario outfit.
  • Man and Woman wearing red and blue, Unisex Adult Onesie with Super Mario theme. Onesie resembles the Super mario outfit. Full body image.
  • A man is dressed in a Mario-themed onesie. The outfit look as a bright red hoodie with an "M" symbol on the hood and blue overalls with large yellow buttons on the straps. He is holding one side of the hood, as if pulling it over his head, and looking directly at the camera with a neutral expression. The overall design mimics the look of the popular video game character Mario, with contrasting red and blue colors. The background is plain, putting focus on the costume and the man's playful pose.
  • A woman is dressed in a Mario-themed onesie. The outfit features a bright red hoodie with an "M" symbol on the hood and blue overalls with large yellow buttons on the straps. She is holding one side of the hood, as if pulling it over her head, and looking directly at the camera with a neutral expression. The overall design mimics the look of the popular video game character Mario, with contrasting red and blue colors. The background is plain, putting focus on the costume and the woman's playful pose.
  • A man is dressed in a Mario-themed onesie. The outfit look as a bright red hoodie with an "M" symbol on the hood and blue overalls with large yellow buttons on the straps. He is holding one side of the hood, as if pulling it over his head, and looking sideways at the floor. The overall design mimics the look of the popular video game character Mario, with contrasting red and blue colors. The background is plain, putting focus on the costume and the man's playful pose.
  • A woman is dressed in a Mario-themed onesie. The outfit looks as a bright red hoodie with an "M" symbol on the hood and blue overalls with large yellow buttons on the straps. Hands in the pockets and looking directly at the camera. The overall design mimics the look of the popular video game character Mario, with contrasting red and blue colors. The background is plain, putting focus on the costume and the woman's pose. Zoomed image.
  • A man is dressed in a Mario-themed onesie. The outfit looks as a bright red hoodie with an "M" symbol on the hood and blue overalls with large yellow buttons on the straps. View from the back and the hood flat on the back. The overall design mimics the look of the popular video game character Mario, with contrasting red and blue colors. The background is plain, putting focus on the costume.
  • A woman is dressed in a Mario-themed onesie. The outfit features a bright red hoodie with an "M" symbol on the hood and blue overalls with large yellow buttons on the straps. She is holding one side of the hood, as if pulling it over her head, and looking directly at the camera with a neutral expression. The overall design mimics the look of the popular video game character Mario, with contrasting red and blue colors. The background is plain, putting focus on the costume.
  • A woman is dressed in a Mario-themed onesie. The outfit features a bright red hoodie with an "M" symbol on the hood and blue overalls with large yellow buttons on the straps. View from the back. The overall design mimics the look of the popular video game character Mario, with contrasting red and blue colors. The background is plain, putting focus on the costume and the woman's playful pose.
(48 reviews)

Mario
Adult Onesie

Color: Mario
$59.99
$59.99
Sale Sold out
Size: XS

Features licensed Onesies:

  • Easy to wash and iron
  • Soft and comfortable to wear
  • Smooth sweater-like fabric
  • Officially Licensed
  • Fabric: 60% Cotton, 40% polyester
  • Washing instructions: Do not tumble dry, Machine Washable, Do not bleach
  • Includes: Onesie
  • Onesie: Hood, Side pockets, Brushed fleece inside
  • Model Size: The male model is 6'0" / 183 cm tall and is wearing size M, the female model is 5'9.5" / 176 cm and is wearing Size S

A flat t-shirt with Mario's face on it doesn't feel like a costume, it feels like you gave up.

What This Is

This is an officially licensed Nintendo Mario onesie, a red hooded Mario outfit with blue overalls, a front zipper, and brushed fleece interior, built as a real Mario costume instead of a plain printed t-shirt.

Why This Mario Outfit Works

  • Officially licensed Super Mario design, so the red hood with the mustache detail and blue overalls actually match Mario instead of a generic red jumpsuit.
  • Front zipper makes this Mario costume quick to get in and out of, unlike a pull-over design.
  • Cotton-poly blend with a brushed fleece interior gives this Mario outfit a soft, sweater-like feel instead of scratchy printed polyester.
  • Side pockets mean somewhere to keep your phone or keys without carrying a bag.

Good For

  • Halloween parties and trick-or-treating
  • Gaming sessions and Comic-Con
  • Movie marathons and cozy loungewear at home
  • Matching duo costumes with an Adult Luigi Onesie

Specifications

Included Onesie
Material 60% cotton, 40% polyester with brushed fleece interior
Design / License Officially licensed Super Mario design, red hood with mustache detail, blue overalls with yellow buttons
Fit Unisex relaxed fit (size up if you're between sizes)
Available sizes XS, S, M, L, XL, 2XL
Care Machine washable, do not tumble dry, do not bleach

Frequently Asked Questions

Is this Mario outfit machine washable?

Yes, it's machine washable. Just don't tumble dry or bleach it, so the red and blue colors stay bright.

Is this an officially licensed Mario costume?

Yes, this is an officially licensed Super Mario product, not a generic red costume with an add-on mustache.

Should I size up for this onesie?

Yes, if you're between two sizes it's best to pick the larger one.

Does this include any accessories, like a hat or gloves?

No, this includes the onesie itself only, no hat, gloves, or shoes.

Is there a matching Luigi costume or a kids version?

Yes. For a matching duo costume, there's the Adult Luigi Onesie, and for kids there's the Mario Kids Onesie and the Luigi Kids Onesie.
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Quality and Fit

Look sharp, feel comfy. Our slim-fit suits are made from high-quality polyester twill—built for style and movement. Go classic or go wild—your wardrobe, your rules.

Overall rating: 4.6666665 / 5 from 48 reviews.

AI Generated Review Summary

The Mario Onesie offers a cozy, comfortable, and instantly recognizable Mario-inspired design, perfect for gaming nights, costume parties, or lounging at home. Its soft fabric and easy zip closure ensure long-lasting comfort and ease of wear.

Summary topics

  • Product Quality (41%): Many customers expressed appreciation for the great quality of the product, which was mentioned multiple times in the reviews.
  • Fabric Quality (19%): Many customers pointed out that the fabric of the product is fantastic, soft, and of high quality.

Review topics: [quality, fit, delivery, costumes, fabric, size, material, onesie, service, order, suit].

Review highlights

  • "Nice fit, and a fantastic soft fabric" — Frans B.
  • "Shadows costume was amazing quality." — Cristina M.
  • "It’s super cozy and warm and great quality!" — Kaitlin W.

Reviews

Gotta Snug Fast

"Got an XL Sonic onesie and was pretty chuffed at it fitting as well as it does, snug in all the right places and so so warm! It's perfect for lounging in the coming colder months but it's also perfect for having a giggle or dressing up for your friends with! Really nice quality too, no scratchy sensations. Fits a 6ft bigger build of 100kg just right, though go for 2xl if you want a looser fit. I have slippers that go with the fit but have yet to go out in public in fear of Eggman attacking! Gotta go fast!"

— Matthew W. (5/5)

Perfect material, Perfect fit, very

"Perfect material, Perfect fit, very fast shipping, I can recomended 🤗"

— Vít C. (4/5)

"It's good it didn't fit me so I went up a size but I gave it to one of my friends and she loved it"

— Jakin (5/5)

"its so cool"

— Savannah (5/5)

"Fits great and very comfortable!"

— Inferno (5/5)

Passt super und ist gut

"Passt super und ist gut verarbeitet. Schnelle Lieferung"

— Andrea P. (5/5)

Tolles Kostüm

"Hatte den Overall als Kostüm für meinen Mann gekauft. Super Stoff und bequem. Nummer größer bestellt, damit noch Thermo-Sachen darunter getragen werden können."

— Diana P. (5/5)

Schöner Überzeugung.

"Schöner Überzeugung."

— Thomas W. (5/5)

Great quality, just as depicted

"Looks and feels great, only minor complaints are that it’s very warm (unsurprisingly) and that it’s very awkward to use the restroom in."

— Brienne P. (4/5)

Top quality, fast delivery.

"Top quality, fast delivery."

— Pierpaolo V. (5/5)

Q&A