.
Onesieclub - Monster Onesie
With accesories
NEW
Limited stock
$39.98 USD$54.59 USD27% off
Kid Size: 2-3T
Try it risk-free with our 30-day money-back guarantee. If your item arrives defective, damaged, or not as described, we’ll give you a 100% refund.
The Monster Onesie: Ultra-Soft Comfort Your Kid Won't Want to Take Off
Plush fleece, a goofy horned hood, and a tail that makes bath-time-to-bedtime one giggly adventure.
👀 Goofy monster face — instant laughs, every time
🧸 Ultra-soft plush fleece — stays fluffy wash after wash
🛋️ Movie-night ready — warm without overheating
📏 Roomy, oversized fit — easy to zip, easy to move in
📸 Built for photos — the outfit that fills camera rolls
Getting Kids Cozy Shouldn't Be a Fight
Scratchy pajamas. Onesies that go stiff after two washes. Costumes that get worn once and forgotten in a drawer. If bedtime routines feel like a battle, the outfit is usually part of the problem.
You want something soft enough for daily wear, warm enough for cooler nights, and fun enough that your kid actually asks to put it on.
Why Parents Reach for This One First
The Monster Onesie is built from thick plush fleece with a full hood, horns, and tail — so it works as everyday loungewear and a costume kids actually want to wear on repeat.
What Makes It Worth the Zip-Up
🧸 Plush fleece that stays soft
No scratchy seams, no stiffening after washes — just wrap-around comfort from hood to toe.
😴 Warm without overheating
Light enough for hours of play, warm enough for chilly evenings on the couch.
📏 Roomy, oversized fit
Built for real kid movement — running, wrestling, rolling around on the floor.
🧵 Easy on, easy off
Simple full-zip closure — no fighting little arms into tight sleeves.
🧼 Machine washable
Cold, gentle cycle — comes out just as fluffy every time.
📸 An outfit that photographs itself
Horns, hood, and tail combine for the kind of picture that ends up on the fridge.
| Size | Age | Length | Bust | Shoulder to Crotch | |||
|---|---|---|---|---|---|---|---|
| cm | inch | cm | inch | cm | inch | ||
| 70 | 6-12M | 59 | 23.23 | 62 | 24.41 | 42.5 | 16.73 |
| 80 | 12-18M | 64 | 25.20 | 64 | 25.20 | 45 | 17.72 |
| 90 | 18-24M | 69 | 27.17 | 66 | 25.98 | 47.5 | 18.70 |
| 100 | 2-3T | 74 | 29.13 | 68 | 26.77 | 50 | 19.69 |
| 110 | 3-4T | 79 | 31.10 | 70 | 27.56 | 52.5 | 20.67 |
| 120 | 4-5T | 84 | 33.07 | 72 | 28.35 | 55 | 21.65 |
From Order to Cuddles in 3 Steps
Pick the right size
Use the size chart — it fits loose and oversized, so size up if your kid is between sizes.
It ships fast
In stock and delivered in 3-5 working days, with free shipping included.
Zip up and go
One zip, no fuss — ready for movie night, playtime, or just lounging around the house.
Built-In Details, Explained
| Plush fleece fabric | Soft against sensitive |