Mermaid Costume
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Mermaids show up in sea stories from all over the world, and they’re one of the most popular fantasy costumes for kids and adults alike. The trick is getting that tail look while still being able to walk.
What Makes It Work
The tail comes first. A long sequin or scale-print skirt that’s fitted at the hips and flares out near the ankles, like a fin. Look for a split fin or a back hem that’s longer than the front so you can actually take steps.
The top can go two ways. A shell top over a fitted nude or tan tank for a family-friendly look, or a sequined top in ocean colors. Teal, purple and sea-green all work.
Hair finishes it. Long, loose waves, maybe with a few strands of colored hair, small shells or pearls clipped in, or a starfish clip. Shimmer on the collarbones and a few scale-pattern touches on the cheekbones make it magical.
What People Get Wrong
A tail you can’t walk in. A full fin costume looks gorgeous in photos and then you’re shuffling all night. Pick a skirt with a slit or a fin that starts low. And for kids, a mermaid tail blanket or full tail is for photos only, not for trick-or-treating.
Buy It or Build It?
Kids’ mermaid kits run about $20 to $45. Adult sequin tail skirts run about $25 to $60. A sequin skirt plus a shell top is an easy build.
Where to Buy
| Retailer | What they carry | |
|---|---|---|
| Amazon | Costume kits, wigs and accessories | Shop on Amazon |
FAQ
How do I walk in a mermaid costume?
Choose a fishtail skirt with a slit, or one where the fin flares at the knees rather than the ankles. Shorter steps help too.
How do I make a mermaid top for kids?
Glue two felt or foam shells onto a fitted tank top or leotard in a skin tone or ocean color.
What hair works for a mermaid costume?
Long beach waves, a loose braid with shells woven in, or a colored wig in teal or purple.
Is a mermaid costume good for a group?
Yes. Each mermaid can pick a different tail color, or pair up with a pirate or a sailor.
Next up: Unicorn Costume
See Also
Free: The Last-Minute Costume Cheat Sheet
Ten costumes you can make tonight, mostly from your own closet. One page, printable, plus a short email before each costume season. No spam.