Updated: 17 Feb 2025

adult onesie plus sizes

Explore up to 14% Off

Updated: 17 Feb 2025

#1

Best Choice
DC Comics Batman Onesie | Mens Pajamas | Onesie for Adults | Black | XX-Large

9.7

DC Comics

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Main highlights

Official Batman Merchandise: Dive into the world of Gotham with this authentic mens Batman onesie. Licensed directly from DC Comics, it's a standout piece in any collection of Batman clothes or Batman pyjamas for Men

Ideal Gifts for Him: Searching for the perfect Christmas gift, birthday present, or gifts for dad? This Batman onesie doubles up as quirky Batman pjs. Not just any men's onesies, but a top pick for those who adore superhero comics

Bat-tastic Hood Design: Swoop into the action with the playful Batman-inspired hood of this fleece onesie. Perfect for bringing out your inner Dark Knight during those fun, cosy nights
#2

Value for Money
Forever Lazy Heavyweight Adult Onesie - Drift Away Gray - XL

9.5

Forever Lazy

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Main highlights

Ultra soft, heavyweight 85% polyester, 15% cotton blend material is anti-pill and machine washable

Relaxed, unisex fit allows for comfortable lounging in any position

Convenient rear zipper drop seat and deep side pockets for easy access without removing the pajamas
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#3
Forever Lazy Footed Adult Onesie - Duckie - XXL

9.4

Forever Lazy

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Main highlights

ZIPPER DETACHABLE FEET AND REAR ZIPPER DROP SEAT - Our onesies feature a hidden zipper tract that allow users to remove or re-attach the feet as desired thus offering the versatility of both a footed and non-footed pajama. This also comes equipped with a concealed, rear zipper drop seat is conveniently located on the back side of the onesie, so you never have to take it off, even to use the restroom.

SOFT, COMFORTABLE MATERIAL - Our Forever Lazy onesies are made with a high quality, 100% polyester fleece that is ultra soft and anti-pill. Our onesies can be conveniently laundered at home with a washing machine. Simply add the onesie to a load with like colors, wash in cold water, and then tumble dry on a low heat setting or hang dry.

RELAXED, UNISEX SIZING - Our sizing does not follow traditional sizing because the onesies are unisex. As a result, it is important that you follow our Forever Lazy size chart in the secondary images. Start with the height column on the size chart, then slide over and make sure your weight is within the size for your height. If not, size up until your weight is found. The size "One Size" is our size Small, but in a wide fit.
#4
Funziez! Sherpa Bear Adult Onesie - Animal Halloween Costume - Plush Teddy One Piece Cosplay Suit for Adults, Women and Men

9.3

Funziez!

-14%

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Main highlights

FULL OF FUN DETAILS - This adorable and eye - catching sherpa bear onesie features a hood with detailed eyes, ears and smiles for full effect. Match with a pair of animal slippers (not included) for your next pajama party!

COZY SHERPA CONSTRUCTION - Fully crafted from soft, luxurious sherpa, this fun costume is the perfect blend of comfort and fun. Ideal for staying warm during those chilly winter months!

COZY - A special blend of comfort and fun, these plush materials are soft to the touch and will keep you warm during those cold winter months. Zip-up closure allows you to quickly get dressed while the loose fit gives you the flexibility to easily wear over your existing clothes or jacket.

-14%
#5
COSUSKET Snug Fit Unisex Adult Onesie Pajamas, Flannel Cosplay Animal One Piece Halloween Costume Sleepwear Homewear

9.2

COSUSKET

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Main highlights

The image design of sulley sullivan costume is vivid and life like.

Material:Flannel sulley sullivan onesie pajamas[100% Polyester].

23°C for warmth, fluffy cozy and light fleece.
#6
6350-XXL Just Love Adult Onesie / Womens Pajamas, XX-Large, Alien

9.1

Just Love

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Main highlights

WIN HALLOWEEN: Be a certified hit this Halloween in these unique adult onesie pajamas. Perfect for turning heads and netting compliments at that Halloween party, they come in cool pumpkin, goldfish, ghost, and alien prints, complemented with a face-printed hoodie to complete the look.

FLATTERING FIT: Look great in all those photos you’ll take. We’ve designed these Halloween costumes for women to give you comfy wiggle room while still creating a lovely, flattering silhouette. Available in S-XXL, there is an adult onsie to fit the petite to the plus size.

COMFORT YOU’LL LOVE: Whether you’re handing out candy or having a blast with friends, you’ll love the feel of the extra-soft 100% polyester microfleece. You can also rock these hooded one-piece Pjs any time of the year when lounging, heading out for festivals, and everything in between.
#7
Funziez! Adult Onesie Halloween Costume - Animal and Sea Creature - Plush One Piece Cosplay Suit for Adults, Men and Women

9.0

Funziez!

-12%

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Main highlights

PERFECT FOR ANY OCCASION - Loose fitting style allows for full freedom of movement while maintaining style and comfort. The fun and whimsical designs will make sure you get noticed at your next convention or festival.

FULL OF FUN DETAILS - These adorable animal onesies feature a hood with detailed eyes, ears and smiles for full effect. Match with a pair of animal slippers (not included) for your next pajama party!

COMFY & COZY - A special blend of comfort and fun, these plush materials are soft to the touch and will keep you warm during those cold winter months. The button up closure allows you to quickly get dressed while the loose fit gives you the flexibility to easily wear over your existing clothes or jacket.

-12%
#8
Just Love 6290-RED-XXL Adult Onesie/Pajamas

8.8

Just Love

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Main highlights

ULTRA COMFORTABLE FIT: All the sizes from XS-XXL fit true to size and are designed to be comfortably roomy to allow for unrestricted movement. The full body pajamas are also fitted with elastic cuffs at the wrists and ankles, and have a zipper for an even better fit.

INDULGE YOUR FUN SIDE: Whether you’re a girlie girlie, animal print lover, or all about those whimsical patterns, you’ll find your perfect adult hooded onesie from our fun prints and beautiful clash of color.

FEEL UNBELIEVABLY COZY: You’ll love the plush fleece fabric on the adult onesie pajamas that feels sensational on your skin, the Sherpa lining in the hood that keeps you perfectly warm, and the little pom poms hanging from the hood that add a cute, cozy touch.
#9
ABENCA Fleece Unicorn Onesie Adult Pajamas for Women Cartoon Animal Christmas Halloween Cosplay Onepiece Costume, Colorful Rainbow, XL

8.6

ABENCA

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Main highlights

Suitable for Halloween, Christmas, party, cosplay, homewear

Lining inside the hoodie piped neckline

Cute cartoon design with tail and hoody
#10
Kgromfy Adult Pajamas Women Tie Dye Onesie Comfy Hooded One Piece Party Costume Jumpsuit Sleepwear Homewear Colorful Gray Zipper-S

8.5

Kgromfy

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Main highlights

Warm & Comfy: High-quality material, skin-friendly and super soft and cozy.Warm pajamas won't even feel the cold in winter.

Multi-occasion: This jumpsuit is a universal garment that can be used as performance wear, loungewear, casual wear, home wear, sportswear, couple pajamas and so on.Perfect for wearing at festivals: Mardi Gras, Christmas, winter family theme parties, New Year's Eve, etc.

Fashion Casual: Tie-dye pajamas are very unique and vibrant in color. The personality is distinctive and makes all your winter days wonderful. Smooth zipper, double pockets, large hood, one-piece simple design.