The Chompsie
The big-mouth monster onesie. It eats you whole, in the coziest way.
- The gift they'll actually wear all winter
- Big-mouth hood with googly eyes that cracks everyone up
- Thick, plush fleece you won't want to take off
- Roomy unisex fit for couch nights, matching and family photos
30-day money-back guarantee • Tracked shipping
shipping
guarantee
S to XXL
🚚Shipping & Delivery
Free tracked shipping to the US on every order. Most orders arrive in 6 to 10 business days; your estimated dates show above the Add To Cart button.
📏Size & Fit
Oversized and unisex, adult sizes S to XXL. S fits 4'11" to 5'0" (88 to 110 lb), M 5'1" to 5'4" (110 to 143 lb), L 5'5" to 5'8" (143 to 176 lb), XL 5'9" to 6'0" (176 to 198 lb), XXL 6'1" to 6'5" or 198 to 220 lb. If height and weight point to different sizes, take the bigger one.
🧶Fabric & Care
100% polyester coral fleece, thick and plush (about 200 to 250 g/m²). Wash before the first wear: cold machine wash (30°C / 86°F) on gentle with similar colours, hang dry or tumble dry low. No bleach, no iron.
↩️Returns & Guarantee
30-day money-back guarantee. If it doesn't fit or you don't love it, contact us within 30 days of delivery and we'll sort out a refund.
🎁What's Included
Your Chompsie in the colour and size you pick, plus a free giant comb for the monster's hair. In a pack, every Chompsie can have its own colour and size.
Meet Your Monster
Every detail is built for maximum cozy and maximum giggles.
Seen On TikTok
Millions of views, one very hungry hood.
“I love mine!!”
TikTok comment • 675 likes“I'm getting one myself”
TikTok comment • 130 likes“Love mine and I'm 45”
TikTok comment“Mine loves hers!! We ordered some for us as well”
TikTok commentComments left on creator videos of this onesie on TikTok.
Meet The Whole Gang
Six monsters, six moods. Match with your person, or collect them all.
ChompsiePickle
Snacks first, asks later.
ChompsieGrape
Professional napper.
ChompsieMarshmallow
Soft. Mostly harmless.
ChompsieCherry
Loud, proud, very cozy.
ChompsieSky
Head in the clouds.
ChompsieButter
Sunshine with teeth.
Made For
Chompsie Vs. The Rest
| Chompsie | Regular PJs | Party costume | |
|---|---|---|---|
| Thick coral fleece | ✓ | ✗ | ✗ |
| Big-mouth monster hood | ✓ | ✗ | ✓ |
| Comfy enough to sleep in | ✓ | ✓ | ✗ |
| Gets a laugh every time | ✓ | ✗ | ✓ |
Happy Snacks
She Won't Take It Off
Ordered for my daughter and she wore it to school pick-up. Three moms asked where I got it. The teacher called it 'disruptive.' Compliment accepted.
The Whole Family Is Monsters Now
Got four different colors for movie night. My husband said he'd never wear one. That was Friday. He still hasn't taken it off.
They Literally Screamed
Bought these for my nieces. They opened the box, screamed, and have been stomping around the house being monsters for two days straight. Best purchase of the year.
Bought It 'For My Granddaughter'
Ordered this for my granddaughter. Three weeks later I still haven't given it to her. I keep saying I'll ship it tomorrow. It's just too cozy.
Laundry Day Is a Hostage Situation
She puts this on the second she gets home. Getting her to take it off for the wash has become an actual negotiation. Send help. Or another Chompsie.
Best Gift I've Ever Given
Got this for my son's birthday. He opened it, put it on over his clothes, and wore it to his own party. Even the dog looked jealous.
We Need a Second One. Urgently.
Ordered the grape one thinking it'd be a fun loungewear thing. Now my partner and I fight over who gets to be the purple monster. Ordering a second to keep the peace.
Four Stars Because I Can't Wear It to Work
Warm, cozy, the hood is hilarious. Genuinely asked my boss if I could wear it to the office. Was told no. Docking one star for corporate America.
Fun. That's the Review.
I stomp around. I'm a monster. Life is good. What more do you need to know.
Questions? We Don't Bite.
What Size Should I Get?
Chompsies are oversized and unisex. Find your height and weight below; if they point to different sizes, take the bigger one so the legs are long enough and there's room to lounge. Want it extra roomy? Go one size up.
| Size | Height | Weight |
|---|---|---|
| S | 4'11" to 5'0" 150 to 154 cm | 88 to 110 lb |
| M | 5'1" to 5'4" 155 to 164 cm | 110 to 143 lb |
| L | 5'5" to 5'8" 165 to 174 cm | 143 to 176 lb |
| XL | 5'9" to 6'0" 175 to 184 cm | 176 to 198 lb |
| XXL | 6'1" to 6'5" 185 to 195 cm | 198 to 220 lb |
What Is It Made Of?
100% polyester coral fleece, a thick plush fabric (about 200 to 250 g/m²) that feels like wearing your softest blanket. The lips, eyes and hair are plush too, and the giant comb is plastic.
Is It Warm?
Very. The thick fleece is made for fall and winter nights on the couch. On a hot summer day it will be too warm, so this one is for cold-season lounging.
What's Included?
Your Chompsie in the colour and size you pick, plus a free giant comb for the monster's hair.
Can I Mix Colours And Sizes In A Pack?
Yes. In every pack you choose the colour and size for each Chompsie separately, so the whole family gets their own monster in their own size.
How Do I Wash It?
Wash it once before the first wear. Machine wash cold (30°C / 86°F) on a gentle cycle with mild detergent and similar colours. Hang it to dry or tumble dry on low. No bleach, no iron, no dry cleaning. Give the hair a quick comb once it is dry.
Does It Shed?
New fleece can let go of a few loose fibres at first. The first wash takes care of most of them.
When Will My Chompsie Arrive?
Shipping is free to the US and every order is tracked. Most orders arrive in 6 to 10 business days; you see your estimated dates right above the Add To Cart button.
What If It Doesn't Fit Or I Don't Love It?
You're covered by our 30-day money-back guarantee. Contact us within 30 days of delivery and we'll sort out a refund.
Do You Have Kids' Sizes?
Not yet. Chompsies come in adult sizes S to XXL, from about 4'11" (150 cm).
Will The Colour Look Like The Photos?
Screens show colours a little differently, so your Chompsie can look slightly lighter or darker in person than on your phone.