01
Spikes all the way to the tail
Soft spikes run from the top of the hood down the back to the plush tail — it reads as a dinosaur from every angle.
👶 Baby's first Halloween🎃 Arrives before Halloween
Baby Dinosaur Halloween Costume – Plush Dino Onesie
$49.99
$70.00
HALLOWEEN SALE · 28% OFF
A full-body plush dinosaur: soft spikes over the hood and down the back, a tail, and one zip from neck to ankle. Thick enough to trick-or-treat in — no coat hiding the costume.
- Cozy flannel fleece
- Spikes + tail included
- Warm without a coat
- One zip, 10-second changes
Color — Green
Size — 0-6 MonthsSize chart
🦖 Not sure? My baby is
lb and
in tall
Enter weight and/or height and we’ll pick the size.
Quantity
🚚
Free tracked shipping to every US address.
✓ Free shipping✓ Free size swap✓ 30-day returns
Shipping & delivery
Free tracked shipping to every US address. Orders placed before 2pm ET ship the same day and arrive in about 5 business days. You get a tracking link by email as soon as it ships.
Returns & size swaps
Wrong size? We exchange it for free. Changed your mind? Return it within 30 days for a full refund — just message us and we'll take care of it.
Material & care
Soft flannel fleece, full-length front zip, spikes and face details stitched in fabric (no hard plastic parts).
Machine wash cold on a gentle cycle, tumble dry low or hang to dry.
Not a hat and a bib
A whole dinosaur, from hood to toes.
Most baby costumes stop at a hood. This one keeps going — spikes down the back, a real tail, sleeves to the wrists and legs to the ankles. Set them down on the floor and you don't have a baby in a costume. You have a tiny dinosaur on the loose.
- Hood with soft spikes and a friendly toothy face
- Spikes run all the way down the back to a plush tail
- Thick fleece — warm enough for a chilly trick-or-treat walk
- Long sleeves and long legs — nothing left out in the cold
Up close
The details parents notice first.
02
Soft, not stiff
Brushed fleece that moves with them. Comfortable babies wear costumes longer — and cry less in photos.
03
One zip, done
A single zip from neck to ankle means dressing and diaper changes take seconds, not a wrestling match.
Why this one
Not all dino costumes are equal.
| Roarlet | Typical costume | |
|---|---|---|
| Full body — hood, body, tail | ✓ | ✕ |
| Spikes all the way down the back | ✓ | ✕ |
| Warm enough to wear outside | ✓ | ✕ |
| Diaper-friendly full zip | ✓ | ✕ |
| No small hard parts | ✓ | ✕ |
| Free size exchange | ✓ | ✕ |
Size & fit
In between sizes? Size up.
Babies grow fast and fleece is forgiving. Go by height and weight rather than age — if your little one is near the top of a range, pick the next size so it still fits on the 31st (and for the photos after).
| Size | Child height up to | Child weight up to | Suit length |
|---|
Height and weight are your child's measurements. Suit length is measured on the costume, shoulder to foot. Still unsure? Order your best guess — size swaps are free.
Made for little ones
- A costume, not sleepwear. Made for supervised, awake wear — play, photos, trick-or-treating. Take it off (hood included) before sleep.
- No small parts. Spikes, eyes and teeth are soft stitched fabric — nothing glued on to pull off.
- No cords. No drawstrings or ties anywhere near the neck.
- Easy to clean. Machine washable, cold and gentle. (It will need it.)
Halloween delivery
Choose your dino
It arrives before Halloween. 🎃
Order by October 22 and your little dino is at your door before the 31st — shipped the same day, tracked all the way.
0Days
00Hours
00Min
00Sec
TodayYou order
Pick the color and size. You get a confirmation email right away.
Same dayWe ship it
Order before 2pm ET and it leaves today. Tracking link sent by email.
About 5 business daysDino arrives
Delivered to your door, in time for the 31st if you order by October 22.
Questions
What parents ask before ordering.
Which size should I pick?
Go by height and weight, not age — use the size finder under the size buttons. If your baby is near the top of a range, take the next size up. If it's wrong, we swap it for free.
Will it arrive before Halloween?
Yes. Orders placed by October 22 arrive before Halloween at any US address. The product page shows your exact delivery window before you buy.
Is it warm enough to go outside?
Yes — it's thick flannel fleece. On a mild evening a onesie or bodysuit underneath is enough; on a cold night add a long-sleeve layer.
Can my baby sleep in it?
No. It's a costume made for awake, supervised wear. Please take it off before naps and bedtime.
What if I don't like it?
Return it within 30 days for a full refund. Wrong size? Free exchange. Just message us from the contact page.
How do I wash it?
Machine wash cold on gentle, then tumble dry low or hang to dry.
Can I track my order?
Yes. You'll get a tracking number by email when it ships, and you can follow it anytime on our Track Order page.
30days
Try it on at home. Keep it only if you love it.
Wrong size? We swap it for free. Not what you hoped? Send it back within 30 days for a full refund. Costume season is stressful enough.