Aventurine swimsuit and bikini pdf sewing pattern

Sew a comfortable swimsuit or bikini with this easy sewing pattern

This is an instant downloadable swimsuit and bikini PDF sewing pattern with various options:

  1. 1. Low back swimsuit
  2. 2. Low back swimsuit with wings
  3. 3. Bikini with low waisted bottom
  4. 4. Bikini with high waisted bottom

This is a very comfortable gathered necked one piece swimsuit. You can make a low back halter swimsuit or a better supportive version with wings on the back. This is recommended if you have a C or D cup or want to be comfortable all the time while wearing your swimsuit.

The bikini  can be made with a high waisted bottom or low waisted bottom. You can decide how high you want it. The top is very comfortable and the non-slip elastic band on the hem prevents it from lifting when moving.

This is a beginner-friendly swimsuit and bikini pattern. You’ll find clear instructions and a video to learn how to add elastics to swimsuits if you’ve never done so before.

This pattern is available form size 34-52 in European sizes (Uk 6-24, US 2-20)

This pattern includes some additional options for both swimsuit and bikini:

  1. 1.  High or low waisted bikini bottom
  2. 2. Seamless lining for all versions
  3. 3. Breast support for the top of the bikini and swimsuit and       possibility to add inserts of swimsuit cups
  4. 4. Wide straps or spaghetti straps
  5. 5. Height adjustment for different body heights

The downloadable sewing pattern file includes:

  • A4, A0, US size PDF sewing patterns for printing the pattern at home or in a copy shop.
  • Easy step by step sewing instructions.

Get inspired by other sewists wearing their Aventurine swimsuits and bikinis.

Check the hashtag: #aventurineswimsuit and my Instagram @agnes_somogyi_patterns.


You shall not resell or monetize any part of this pattern and instructions or clothing made with it.

You are allowed to create clothing for personal use only and share them on social media.

This pattern cannot be used for commercial use.

We do not accept cancellations or refunds due to the nature of the product as a digital download.

If you need help or have any questions, send us a message.


Aventurine Swimsuit Low Back

Aventurine Swimsuit Law Back Wings

Aventurine One Piece Swimsuit Front

Aventurine One Piece Swimsuit Back

Aventurine Bikini Front

Aventurine Bikini Back

Low Back Swimsuit Sewing Pattern
One Piece swimsuit PDF Pattern
Bikini Sewing Pattern PDF

Kind Words From Aventurine Testers

"It is very comfortable and I absolutely love it...it has become my favorite bikini!"

Get inspired by the stunning DIY swimsuits and bikinis of fellow sewists who helped me make this pattern even better. Click on the images to see more pictures of their versions and other beautiful projects they share on Instagram.

custom printed fabric

Choose Your fabric

Get a custom printed fabric for your DIY swimwear! Choose from hundreds of designs the best for your project. The chosen design will be printed on a 142 cm wide, 290 g per square metre 4-way stretch Lycra, which is perfect for your Aventurine.