What watch does Ben 10 wear?

Ben wears the Omnitrix, a powerful alien device that looks like a chunky grey, black, and green wristwatch.

How can I make a DIY Omnitrix?

You can wrap a wide strip of black felt or craft foam around your wrist, layer grey foam pieces on top, and use a green plastic bottle cap with a black 'X' painted on it for the dial.

What color are Ben 10's pants?

In the original series, Ben Tennyson wears olive green cargo pants with large side pockets.

AI-generated example

Ben 10 Costume

Unleash the power of the Omnitrix with this classic hero look.

Ben Tennyson, the alien-shifting hero of Cartoon Network's Ben 10, is a favorite choice for fans of classic 2000s animation. This guide focuses on his iconic original look, featuring a distinctive green-striped shirt, cargo pants, and his signature alien-transforming watch. It is a comfortable, highly recognizable, and budget-friendly costume that is perfect for conventions or Halloween.

Difficulty: Easy
Time: ~20 min
Budget: $25–65

See yourself as Ben 10 →What you need Buy the Ben 10 costume

Try it on

See yourself as Ben 10

One clear photo of yourself; we render you in this costume — face untouched, full body, about 20 seconds.

Choose or drop a photo of yourselfJPG · PNG · HEIC

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.

Ben 10 costume — Example look · AI-generated

You as Ben 10

Result

What you need for a Ben 10 costume

Short on time? Buy it ready-made

Spirit Halloween sells the complete Ben 10 costume — one box instead of 5 pieces.

Shop Ben 10 at Spirit ↗

White and Black T-Shirt
A white crewneck t-shirt featuring a thick vertical black stripe down the center and black trim around the collar and sleeves.
DIY: Use black fabric paint or black duct tape to create a thick vertical stripe down the middle of a plain white t-shirt.
Amazon
Green Cargo Pants
Loose-fitting, comfortable olive green cargo pants with side utility pockets.
DIY: Use any olive green utility pants or chinos you already own.
Amazon
The Omnitrix Watch
A chunky, futuristic grey and black wristband watch with a green and white dial interface.
DIY: Craft one using a wide black wristband, grey craft foam, and a green painted bottle cap for the dial.
Amazon
Black and White Sneakers
Low-top canvas sneakers in black with white soles and white laces.
DIY: Wear any standard black and white athletic shoes.
Amazon
Brown Wig
A short, shaggy brown wig with messy, youthful layers.
DIY: Style your natural hair with texturizing wax to create a messy, wind-swept look.
Amazon

Rather not assemble it? See ready-made Ben 10 costumes at Spirit Halloween ↗

How to put it together

1
Put on the olive green cargo pants and secure them with a simple black belt if needed.
2
Slip on the white t-shirt with the vertical black stripe, ensuring the stripe is centered.
3
Lace up your black and white low-top sneakers.
4
Secure the Omnitrix toy watch or DIY replica onto your left wrist.
5
Style your hair or put on the shaggy brown wig, using hairspray to keep the messy spikes in place.
6
Strike a classic hero pose, ready to press down on the Omnitrix dial.

Makeup & hair

Keep makeup minimal and natural. For hair, style a shaggy brown wig or your natural hair into messy, youthful layers using texturizing pomade or wax to mimic Ben's animated look.

Ben 10 for couples, groups, kids & more

couples: Pair up with Gwen Tennyson in her blue cat-logo shirt and freckles, or Grandpa Max in his red Hawaiian shirt.
group: Form a team with Gwen, Grandpa Max, and Kevin Levin, or have friends dress up as alien forms like Heatblast or Four Arms.
kids: This is highly popular for kids; use a pre-made licensed jumpsuit or a simple t-shirt and toy Omnitrix set.
Plus size: Cargo pants with elastic waistbands offer a highly comfortable, flexible fit for this look.
pet: Dress your dog in a green pet t-shirt with a small felt Omnitrix attached to their collar.

Tips

Choose cargo pants with deep pockets so you can carry your phone and wallet without needing an extra bag.
If using a toy Omnitrix, make sure the batteries are fresh so the green light-up features work for nighttime photos.
Keep your sneakers clean and white-soled to make the outfit look sharp and screen-accurate.
Practice the classic 'slamming down on the watch' pose for photos.

Ben 10 costume FAQ

What watch does Ben 10 wear?: Ben wears the Omnitrix, a powerful alien device that looks like a chunky grey, black, and green wristwatch.
How can I make a DIY Omnitrix?: You can wrap a wide strip of black felt or craft foam around your wrist, layer grey foam pieces on top, and use a green plastic bottle cap with a black 'X' painted on it for the dial.
What color are Ben 10's pants?: In the original series, Ben Tennyson wears olive green cargo pants with large side pockets.

Did you know? Ben 10 was created by 'Man of Action' (a group consisting of comic book creators Duncan Rouleau, Joe Casey, Joe Kelly, and Steven T. Seagle) and went on to become one of Cartoon Network's longest-running and highest-grossing franchises.