This is a free sewing pattern for a mermaid dress, featuring a beautiful fishtail silhouette that flares out at the hem, similar to the shape of a mermaid’s tail. It is perfect for cosplay costumes, stage outfits, evening wear, and special events.
The pattern is drafted with a slightly relaxed fit, making it easier to sew and more comfortable to wear. For a more body-hugging, dramatic effect—such as for cosplay or formal occasions—you can adjust the lines to match your desired silhouette. We recommend making a test garment (toile) first and then tailoring the pattern to fit your body perfectly.
This design can be customized with various fabrics: stretchy knits for comfort, satin or taffeta for a formal look, or even glitter fabrics for a fantasy-style mermaid gown. If you want to enhance the flare at the hem, consider adding extra godets or using a stiffer fabric to create more volume.
After printing, align the sheets along the join lines, tape or glue them together, and cut out the pieces. Seam allowances (S/A) are already included, so the pattern can be used as is.
The production process is explained with translation software.
If you have any suggestions on how to write like this, please let us know at info@dr-cos.com
We operate this site with your cooperation.
(1) Serging the shoulders and sides of "Front Body", "Front Body Side", "Back Body", and "Back Body Side", and the sides of "Sleeve".
(2) Sew the shoulders and sides of "Front Body", "Front Body Side", "Back Body", and "Back Body Side" together with the center of the back.Sew the sides of the "Sleeve" and attach the stay tape to the center of the back.
(3) Press seam allowances open with an iron.
(4) Serging the "Body", the slit part, and the hem of the "Sleeve", fold back 0.5 inch and sew.
(5) Sew on the invisible zip.
(6) Serging "Facing" with fusible interlining on the outside only.
(7) Sew "Facing" to "Body".
(8) Sew the "Sleeve" to the "Body" and then Serging the armholes.
Free Paper Patterns are possible because of your support.
If you use our patterns, please share them on social media and tell your friends.
Your support helps DRCOS continue to provide patterns in the future.
Children's-100
bust60cm waist49cm hip69cm length76.5cm 9sheets of A4 size (or legal size)
Children's-4
bust23.6in waist19.3in hip27.2in length30.1in 10sheets of letter size
Children's-120
bust67cm waist53.5cm hip78.5cm length89.5cm 11sheets of A4 size (or legal size)
Children's-8
bust26.4in waist21.1in hip30.9in length35.2in 11sheets of letter size
Children's-140
bust76cm waist61.5cm hip88.5cm length104.5cm 14sheets of A4 size (or legal size)
Children's-10
bust29.9in waist24.2in hip34.8in length41.1in 15sheets of letter size
Ladies'-S
bust87cm waist68.5cm hip101cm length116cm 20sheets of A4 size (or legal size)
Ladies'-S
bust34.2in waist26.9in hip39.7in length45.6in 21sheets of letter size
Ladies'-M
bust94cm waist75.5cm hip103cm length120cm 20sheets of A4 size (or legal size)
Ladies'-M
bust37in waist29.7in hip40.5in length47.2in 21sheets of letter size
Ladies'-L
bust101cm waist81cm hip113cm length125cm 21sheets of A4 size (or legal size)
Ladies'-L
bust39.7in waist31.8in hip44.4in length49.2in 22sheets of letter size
Ladies'-LL
bust108cm waist88.5cm hip121cm length128cm 21sheets of A4 size (or legal size)
Ladies'-LL
bust42.5in waist34.8in hip47.6in length50.3in 23sheets of letter size
Men's-L
bust112cm waist91cm hip128cm length134.5cm 22sheets of A4 size (or legal size)
Men's-L
bust44in waist35.8in hip50.3in length52.9in 24sheets of letter size
Men's-LL
bust117cm waist95.5cm hip134cm length140.5cm 25sheets of A4 size (or legal size)
Men's-LL
bust46in waist37.5in hip52.7in length55.3in 27sheets of letter size
Paper pattern & how to make
How to use Paper pattern
Each process How to make
Shop
X(Twitter)
pinterest
Instagram
facebook
Contact Us/Q&A
Japanese Site