• Over 500k Quality Checks Each Year
  • Great Comfort & Fit Guaranteed
  • Next Working Day Delivery

Womens Oceanic Mermaid Costume

Special Price £22.99
In stock
Only %1 left
  • 30 measurements on every costume
  • Over 500,000 quality checks per year 
  • Safety test approved

Sign up & get 15% off your first order

Size Guide
Product Includes
  • Shimmering pink and blue dress
  • Matching headband
SKU
FN7018

A shimmering adult mermaid costume we made with high-shine metallic stretch fabric and a matching headband, available in sizes Small to X-Large for a sea-themed fancy dress look that stands out.

main product photo

  • Overview

    This adult mermaid costume is a striking way to bring an undersea character to life at any fancy dress event. Made from high-shine metallic stretch fabric, the shimmering pink and blue dress turns heads from the moment you walk in.

    • The dress is made from 100% polyester with a high-shine metallic stretch fabric for a fluid, eye-catching look
    • The costume includes a matching headband to complete the mermaid look straight out of the box
    • Available in five sizes from Small (4-6) through to X-Large (20-22) to suit a wide range of fits
    • Designed and manufactured by Fun Shack, founded in 2009 with offices in the UK, US and Europe
    • Ideal for Halloween, Mardi Gras, and sea-themed fancy dress occasions

    We have been crafting costumes since 2009 and this mermaid fancy dress costume for adults reflects the quality and attention to detail we put into every design. We make your best times better with costumes.

  • Sizing & Fit
    • Sized by standard UK dress size: Small (4-6), Small (8-10), Medium (12-14), Large (16-18), X-Large (20-22)
    • The stretch fabric accommodates a range of body shapes within each size band
    • We recommend checking the size chart image on the listing for exact measurements before ordering
    • Wearing tip: if you are between sizes, we suggest sizing up for comfort and ease of movement

  • Questions & Answers

    What sizes does this adult mermaid costume come in?
    The costume is available in five sizes: Small (4-6), Small (8-10), Medium (12-14), Large (16-18), and X-Large (20-22). We recommend checking the size chart for exact measurements before ordering.

    What is the mermaid costume made from?
    The dress is made from 100% polyester with a high-shine metallic stretch fabric that gives it a shimmering, fluid appearance.

    What is included in the mermaid fancy dress costume?
    The pack includes a shimmering pink and blue dress and a matching headband.

    Is this costume suitable for children?
    No. Warning: this costume is not suitable for children under 3 years of age due to small parts.

    Can I wear this costume for occasions other than Halloween?
    Yes. It works well for Mardi Gras, Fasching, Christmas fancy dress, sea-themed parties, and cosplay events.

    How should I wash the mermaid costume?
    Hand wash only in cool water with a mild detergent and allow to air dry. Do not tumble dry.

  • Quality & Safety
    • Made from 100% polyester with a high-shine metallic stretch finish throughout
    • The shimmer fabric is designed to catch the light and hold its shape across the size range
    • Fun Shack has manufactured costumes to consistent quality standards since 2009, with offices in the UK, US and Europe
    • Warning: Not suitable for children under 3 years of age due to small parts
    • Warning: Keep away from fire

  • Occasion Guide
    • Halloween fancy dress: one of the most popular undersea characters for adult costume nights
    • Mardi Gras and Fasching carnival celebrations where bold, colourful costumes are expected
    • Sea-themed fancy dress parties and under-the-sea event nights
    • Christmas and festive fancy dress gatherings calling for a show-stopping look
    • World Book Day or cosplay events with a mythical or ocean character theme

  • Care Instructions
    • Hand wash only - do not machine wash
    • Wash the dress and headband separately in cool water with a mild detergent
    • Do not tumble dry; lay flat or hang to air dry away from direct heat
    • Refer to the garment label for the authoritative care guidance

  • About MorphCostumes

    MorphCostumes is one of the world's largest online costume brands and the home of the original Morphsuit. We were founded in Edinburgh, Scotland, in 2009 by Fraser Smeaton, Ali Smeaton and Gregor Lawson, and today we design over 1,000 costumes for adults and kids, from Halloween and Christmas to stag and hen dos, sporting events and World Book Day. We make your best times better with costumes.