Dinosaur Costume
Bring prehistoric style to life with a cozy, classic dinosaur look.
The dinosaur costume is a timeless favorite for Halloween, cosplay, and parties because it is instantly recognizable and incredibly fun to wear. Whether you want to be a terrifying Tyrannosaurus Rex or a friendly herbivore, this look centers around a vibrant green color palette, soft felt spikes, and a long, swinging tail. It is a comfortable, warm, and highly customizable outfit that works perfectly for all ages.
- Difficulty
- Easy
- Time
- ~20 min
- Budget
- $25–60
Try it on
See yourself as Dinosaur
One clear photo of yourself; we render you in this costume — face untouched, full body, about 20 seconds.
One render, $1. No account needed — if it fails you're not charged. Pricing.
Your photo is sent to Google's Gemini API to make the render and isn't used for training. Renders are AI-generated and labelled.
Want a different costume on this photo, or a whole group in costume? Open the Try-On Studio.
What you need for a Dinosaur costume
Short on time? Buy it ready-made
Spirit Halloween sells the complete Dinosaur costume — one box instead of 5 pieces.
Green hooded jumpsuit or onesie
A bright green, soft fleece or cotton hooded jumpsuit with a front zipper.
DIY: Use a plain green oversized hoodie and matching green sweatpants.
Felt dinosaur spikes
Triangular spikes made of stiff yellow, orange, or red felt running down the spine.
DIY: Cut triangles out of stiff craft felt and attach them along the back of your hoodie with hot glue or safety pins.
Plush dinosaur tail
A stuffed green fabric tail that attaches to the waist or the back of the jumpsuit.
DIY: Sew a cone shape out of green fabric, stuff it with polyester fiberfill, add felt spikes, and pin it to your waistband.
Dinosaur claws or paws
Green plush gloves or mittens with soft white felt claws sewn onto the fingertips.
DIY: Glue white felt triangles onto the tips of plain green winter gloves.
Green face paint
Non-toxic, water-based green and white face paint to blend your face into the costume.
Rather not assemble it? See ready-made Dinosaur costumes at Spirit Halloween ↗
How to put it together
- 1
Put on the green jumpsuit or your green hoodie and sweatpants base layer.
- 2
Attach the plush dinosaur tail to the back of your waistband using safety pins or the built-in belt loop.
- 3
If using a DIY hoodie, secure the felt spikes along the center seam of the hood and down the back using hot glue or safety pins.
- 4
Pull the hood up over your head to frame your face with the dinosaur's head features.
- 5
Put on the green plush claw gloves.
- 6
Apply green face paint to your face, adding white painted 'teeth' around your mouth for a playful reptilian look.
Makeup & hair
Keep your hair tied back or tucked completely inside the hood. Apply green face paint across your forehead, cheeks, and nose, then use white face paint to draw small, sharp dinosaur teeth around your lips.
Dinosaur for couples, groups, kids & more
- couples
- Pair up as a T-Rex and a Paleontologist wearing a khaki utility vest, safari hat, and carrying a magnifying glass.
- group
- Gather friends to dress in different colors of dinosaur onesies to create a colorful, prehistoric herd.
- kids
- A plush, zip-up dinosaur romper with soft spines and a built-in hood is perfect for keeping toddlers warm.
- Plus size
- A loose-fitting, oversized fleece dinosaur onesie offers a highly comfortable, flexible, and inclusive fit.
- pet
- A lightweight green step-in harness with soft felt spikes running down the back.
More ways people search for this costume
The most-searched variations of “Dinosaur costume”, and how this look adapts to each.
Dinosaur costume kids
- A plush, zip-up dinosaur romper with soft spines and a built-in hood is perfect for keeping toddlers warm.
Tips
- Choose a fleece onesie if you are trick-or-treating in cold weather, or a lightweight cotton version for indoor parties.
- If your plush tail is heavy, secure it with a sturdy belt hidden underneath your jumpsuit to keep it from sagging.
- Wear comfortable green or black sneakers to match the prehistoric aesthetic while staying comfortable on your feet.
Dinosaur costume FAQ
- How do I make a DIY dinosaur tail?
- Cut a large cone shape out of green fabric, sew the edges together leaving the wide end open, stuff it tightly with fiberfill, sew on felt spikes, and attach it to a belt.
- What should I wear under a dinosaur onesie?
- Wear lightweight t-shirts and shorts or leggings underneath so you do not overheat while indoors.
- Can I wear this costume if it rains?
- Fleece onesies can absorb water, so if rain is expected, opt for a water-resistant polyester dinosaur costume or carry an umbrella.
Did you know? The iconic green Tyrannosaurus Rex look remains one of the most popular animal costumes worldwide, heavily influenced by pop culture's depiction of friendly dinosaurs in children's television.