Seal Costume
Make a splash in a cozy, adorable seal costume.
The seal costume is a beloved choice for animal lovers, kids, and anyone looking for a cozy, humorous outfit. Perfect for chilly Halloween nights, this look typically consists of a plush grey or white bodysuit, flipper-like sleeves, and a hood featuring a cute whiskered seal face. It is a comfortable, warm option that is guaranteed to stand out at any party.
- Difficulty
- Easy
- Time
- ~30 min
- Budget
- $25–70
Try it on
See yourself as Seal
One clear photo of yourself; we render you in this costume — face untouched, full body, about 20 seconds.
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Want a different costume on this photo, or a whole group in costume? Open the Try-On Studio.
What you need for a Seal costume
Short on time? Buy it ready-made
Spirit Halloween sells the complete Seal costume — one box instead of 4 pieces.
Plush seal bodysuit
A grey, silver, or white hooded jumpsuit made of soft velour or faux fur, featuring attached flipper sleeves.
DIY: Use an oversized grey hooded sweatshirt and sweatpants as your base.
Seal hood or headpiece
A hood featuring embroidered seal eyes, a black nose, and felt whiskers, securing under the chin.
DIY: Glue black felt circles for eyes, a black pom-pom for the nose, and white pipe cleaners for whiskers onto a grey hoodie.
Flipper gloves
Grey felt or fabric mittens shaped like flippers that slide over your hands.
DIY: Cut flipper shapes out of grey felt and sew or fabric-glue them to the cuffs of your sleeves.
Seal tail
A short, flat, paddle-shaped tail attached to the back of the jumpsuit or worn on a belt.
DIY: Cut two paddle shapes from grey felt, stuff them lightly with batting, and safety-pin them to your waist.
Rather not assemble it? See ready-made Seal costumes at Spirit Halloween ↗
How to put it together
- 1
Put on the base grey jumpsuit or your DIY grey sweatshirt and sweatpants.
- 2
Attach the plush seal tail to your waistline using a belt or safety pins if it is not already built into the suit.
- 3
Slip on the flipper-shaped mittens or gloves over your hands.
- 4
Pull up the hood or fasten the seal headpiece under your chin, ensuring the face and whiskers are visible on top of your head.
- 5
Wear simple grey or black shoes to blend in with the bottom of the costume.
Makeup & hair
Apply a black circle of face paint to the tip of your nose. Draw three thin black whisker lines on each cheek using an eyeliner pencil. Keep hair tucked back under the hood.
Seal for couples, groups, kids & more
- couples
- Pair up as a seal and a fisherman, or go as a pair of seals (one grey harbor seal and one white harp seal pup).
- group
- Create a marine life group with friends dressed as penguins, polar bears, orcas, and walruses.
- kids
- A white plush harp seal pup jumpsuit is incredibly popular, warm, and easy for toddlers to wear.
- Plus size
- An oversized grey fleece union suit or kigurumi-style seal onesie offers a comfortable, roomy fit.
- pet
- A grey step-in pet costume with a padded hood transforms your dog into an adorable sea lion.
More ways people search for this costume
The most-searched variations of “Seal costume”, and how this look adapts to each.
Seal costume dog
- A grey step-in pet costume with a padded hood transforms your dog into an adorable sea lion.
Tips
- Opt for a jumpsuit with slit openings at the wrists so you can easily use your hands when eating or drinking.
- If trick-or-treating in cold weather, this plush costume naturally layers well over warm thermal underwear.
- For photos, pose on your stomach with your chest lifted and your flippers resting on the ground to mimic a resting seal.
Seal costume FAQ
- How do I make a DIY seal costume?
- Start with a grey hoodie and sweatpants. Glue black felt eyes, a black nose, and white pipe-cleaner whiskers to the hood. Cut flipper shapes out of grey felt and attach them to your sleeves.
- What do you wear under a seal jumpsuit?
- Wear lightweight, breathable clothing like a t-shirt and leggings, as plush polyester jumpsuits can get quite warm indoors.
- Is a seal costume comfortable for kids?
- Yes, seal costumes are usually made of soft velour or fleece, making them very comfortable, warm, and easy to move around in.
Did you know? Harp seal pups are famous for their snowy white coats, which help them camouflage against the Arctic ice before they shed them for a grey coat as they grow older.