• 10 Best Onesies for Adults in 2022 (Carhartt, Lazy One, and More) 1
  • 10 Best Onesies for Adults in 2022 (Carhartt, Lazy One, and More) 2
  • 10 Best Onesies for Adults in 2022 (Carhartt, Lazy One, and More) 3
  • 10 Best Onesies for Adults in 2022 (Carhartt, Lazy One, and More) 4
  • 10 Best Onesies for Adults in 2022 (Carhartt, Lazy One, and More) 5

10 Best Onesies for Adults in 2022 (Carhartt, Lazy One, and More)

Though some people think that adulthood marks the end of fun, nothing could be further from the truth, and adult onesies are solid proof of that. If you're an adult wanting to unleash your inner child, or just wanting to kick back, relax, and enjoy a chill movie night with a glass of wine, a onesie is the perfect outfit to do it in. 


However, since being an adult means you also have a ton of responsibilities to take care of, mybest did the hard part for you. We looked far and wide for the best adult onesies out there. Topping our list is Lazy One's fun adult onesie, which comes with a silly flapjack bottom. It comes in sizes for infants and kids too. Check out the rest of the super fun onesies we found, and give our buyer's guide a read while you're at it so you know what to look for!

Featured in this article

mybest US Editors
  • Last updated: 08-29-2022
Table of Contents

How to Choose a Onesie for Adults - Buying Guide

When picking an adult onesie, go for one that's comfortable and fun. Make sure it's easy to wear and that it comes with cool extra features!

Decide Whether You’re Going to Use it for Fun or Comfort

Decide Whether You’re Going to Use it for Fun or Comfort

Many adult onesies follow a specific theme, making them more like costumes. From wild animals to cute ones, these themed onesies are bound to make any adult feel like a kid again. A shark onesie is perfect for a “daddy shark” vibe, while a penguin costume would be great either for a party or a lazy day at home from work on a cold day. 


Other animal-themed onesies are crocodiles, lions, and pandas. Dinosaur onesies might even come with tails. Some are even inspired by fictional animals like the unicorn.


Others are inspired by fictional characters. Stitch, Santa, and Olaf are some examples of well-known characters. There are also onesies that are themed after inanimate objects, like Christmas trees or even avocados! 

Decide Whether You’re Going to Use it for Fun or Comfort

Since onesies are quite comfortable and cozy, they also make great pajamas and loungewear. Onesie pajamas with a hood can keep your head and ears warm as you sleep. 


Thermal onesies keep you extra warm in cold weather, thanks to the super-insulating material. Some are even designed to be wearable blankets.

Choose Material That's Comfortable and Not Itchy

Choose Material That's Comfortable and Not Itchy

It's important to choose a material that you’re comfortable in, so you don’t end up putting on something that makes you itch. Polyester is soft and easy to wash. Though it might be good for keeping comfortable and cool, it might not be the best material if you're looking for something to keep you warm. 


Fleece is soft to the touch, thick, and highly insulating. This might make it too stuffy to wear in warm weather. However, it's great for keeping warm on a cold day. Cotton, on the other hand, is easy on the skin, but it isn't as warm as fleece or wool. 


Some onesies are made of a blend of materials that give it specific features. For example, spandex and polyester blends are stretchable. This works well for onesies that are meant to be worn as an inner layer. Other onesies have a combination of different layers, such as a cotton outer layer, but a fleece-lined inner layer. 

Make Sure it’s Easy to Wear

Make Sure it’s Easy to Wear

Pick a onesie with a closure type that’s easy to use. Zipper onesies are quick to put on and take off since a slide up or down will do. Button-up onesies require more work, but your skin isn’t at risk of getting caught in a zipper with these.


A onesie with an adjustable waist might have a garter or elastics you can tug to tighten the fit around you. Cuffed ankles and wrists also ensure that the fabric will fit snugly, preventing cold air from entering through any spaces that might be there otherwise.

Look for Extra Features That Make it More Cozy and Fun

Look for Extra Features That Make it More Cozy and Fun

Some onesies have extra features that make them more comfortable. Pockets allow you to either keep your hands warm or stuff a few important things inside. 


Onesies that include your feet will keep your ankles and toes covered and warm. Some onesies with booties even come with special anti-slip soles, which will help prevent any slips on smooth floors. 


Hooded onesies on non-themed sets allow you to make adjustments according to the climate you're in. Plain hoods that come with drawstrings allow you to keep your head warm and tucked in on extra cold days. 

Look for Extra Features That Make it More Cozy and Fun

Some onesies even have a hood that can function as a pillow! Character-inspired hoods, on the other hand, add detail to your outfit such as an animal face or head, or spikes for a dinosaur-inspired onesie.


Some onesies have slots for your fingers, while others come with removable mittens which keep your hands covered and snug in cold weather. Others come with extra details like make-believe wings or a tail!

10 Best Onesies for Adults

These top picks of ours feature a wide array of fun onesie designs. From famous characters and animals to the random avocados, the following onesies are bound to be a lot of fun. We even found some plain ones that are designed specifically for a comfy night. Check them out, and you just might find the perfect one for you!

Image
1
Lazy One Flapjack Pajamas 1

Lazy One

2
Forever Lazy Heavyweight Adult Onesie 1

Forever Lazy

3
Ekouaer Zip-Up Jumpsuit 1

Ekouaer

4
PajamaGram Hoodie-Footie One Piece Pajamas 1

PajamaGram

5
Carhartt Thermal Union Suit 1

Carhartt

6
Footed Pajamas Family Matching Hoodie Onesies 1

Footed Pajamas

7
Alexander Del Rossa Men’s Fleece Onesie 1

Alexander Del Rossa

8
Newcosplay Flying Squirrel Pajamas 1

Newcosplay

9
Silver Lilly Dinosaur Costume 1

Silver Lilly

10
Duofold Men's Double-Layer Thermal Union Suit 1

Duofold

Name

Flapjack Pajamas

Heavyweight Adult Onesie

Zip-Up Jumpsuit

Hoodie-Footie One Piece Pajamas

Thermal Union Suit

Family Matching Hoodie Onesies

Men’s Fleece Onesie

Flying Squirrel Pajamas

Dinosaur Costume

Men's Double-Layer Thermal Union Suit

Features

Adorable Onesies for the Whole Family

Laze Around All Day in a Full-Body Hoodie

Lounge in Style With a Sporty, Figure-Flattering Jumpsuit

Warm and Soft Onesie for People Who are Always Cold

An Insulating Onesie Designed for Functionality

Keep Your Feet Warm With Footed Pajamas

Soft Plaid Onesie With Removable Booties

Glide Around in This Flying Squirrel Onesie

Roar Your Stress Away in a Dinosaur Onesie

A Soft Layer on the Inside and Warm Outer

Price$44.99$49.99$30.99$79.99$44.99$44.95$39.99$25.99$24.99$36.41
MaterialCottonCotton and polyesterNot indicatedPolyester microfleeceCotton and polyesterPolyesterFleecePolyester and fleece PolyesterCotton, merino wool, nylon
SizesXS to XXLXXS to XXLS to XXLXS petite to 3XS to 4XLXS to XXLS to 3XLS to XLXS to XXLS to XXL
ClosureButtonZipperZipperZipperButtonZipperZipperButtonButtonButton
Extra featuresBottom flapPockets, drawstring hood, rear zipper drop seatPockets, drawstring hoodRemovable booties, drawstring hood, pockets, wrist cuffs with thumb holesTag-less label, thumb loops, waistband, back openingHood, pockets, built-in bootiesHood, pockets, removable bootiesHood, pockets, tailHood, pockets, tailRear fly opening
Link
1

Lazy OneFlapjack Pajamas

$44.99

MaterialCotton
SizesXS to XXL
ClosureButton
Extra featuresBottom flap
2

Forever LazyHeavyweight Adult Onesie

$49.99

MaterialCotton and polyester
SizesXXS to XXL
ClosureZipper
Extra featuresPockets, drawstring hood, rear zipper drop seat
3

EkouaerZip-Up Jumpsuit

$30.99

MaterialNot indicated
SizesS to XXL
ClosureZipper
Extra featuresPockets, drawstring hood
4

PajamaGramHoodie-Footie One Piece Pajamas

$79.99

MaterialPolyester microfleece
SizesXS petite to 3X
ClosureZipper
Extra featuresRemovable booties, drawstring hood, pockets, wrist cuffs with thumb holes
5

CarharttThermal Union Suit

$44.99

MaterialCotton and polyester
SizesS to 4XL
ClosureButton
Extra featuresTag-less label, thumb loops, waistband, back opening
6

Footed PajamasFamily Matching Hoodie Onesies

$44.95

MaterialPolyester
SizesXS to XXL
ClosureZipper
Extra featuresHood, pockets, built-in booties
7

Alexander Del RossaMen’s Fleece Onesie

$39.99

MaterialFleece
SizesS to 3XL
ClosureZipper
Extra featuresHood, pockets, removable booties
8

NewcosplayFlying Squirrel Pajamas

$25.99

MaterialPolyester and fleece
SizesS to XL
ClosureButton
Extra featuresHood, pockets, tail
9

Silver LillyDinosaur Costume

$24.99

MaterialPolyester
SizesXS to XXL
ClosureButton
Extra featuresHood, pockets, tail
10

DuofoldMen's Double-Layer Thermal Union Suit

$36.41

MaterialCotton, merino wool, nylon
SizesS to XXL
ClosureButton
Extra featuresRear fly opening

Adults Need to Have Fun Too!

Unleash your inner child with these fun products! They're bound to give any adult loads of fun at the end of the most stressful day.

Author: Beatrice Joy


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