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How to Make Custom Swimwear

The production process for how to make custom swimwear with particular tips on how to sew swimwear is a crucial process due to the stretch fabric you have to deal with. Learn everything about design, sampling and production.


The cold season is over and in just a few months, summer season will be around the corner. By then, it’s the perfect time to hit the beach and strut your favorite swimwear. There is a large variety of swimwear available out there in the market today with many of style and type. However, compared to other types of clothing, the available styles are less numerous and less trendy. This gives you the opportunity to start your own custom clothing swimwear line. Swimwear is a crucial piece of clothing as it easily exposes your body so small differences can matter a lot to make it as flattering as possible. There are many stories of successful entrepreneurs starting their swimwear line with very limited investment.

How to make custom swimwear is actually easier said than done. Swimwear is one of those clothing products which seamstresses are intimidated to sew due to the fabric elasticity commonly used in swimwear. It also requires special types of fabrics that dry quickly. There are important tricks involved when making custom swimwear which clothing manufacturers need to know of in order to make sure there are no setbacks during the production process. If they do not have the right skills to deal with elastic fabric, then lead times can be affected or bad product outcomes occur. Make sure that you become familiar with the production process.

How to make custom swimwear requires skill.

Production Process of Custom Swimwear

There are some some special aspects when it comes to the production process on how to make custom swimwear. However, the project steps are in principle the same as with any other clothing production processes. Design conception always comes first and then product development before hitting the production line for product creation. Product development usually takes up the most time since there is be back and forth with the coordination, the sample has to be made and modifications as well as reiterations have to be implemented.

Swimwear normally has comparatively straightforward cuts and the alterations mainly come in with colors and simple add-ons. The structure and designs are consistent or relative to each other. Design conception does not have to take much time when it comes to making custom swimwear. As long as you have a basic swimwear design in mind, it is easy to use this as a basis for later designs and simple tweaks and modifications of this current design can serve for future swimwear designs.

The most time-consuming part on how to make custom swimwear is the pre-production process. It is because this is where the most critical sub-processes in swimwear clothing production falls under. Tech pack creation, product costing and sourcing of materials are all part of pre-production process. Even though some of these sub-processes can be done altogether, the possible changes during sourcing of materials and tech pack finalizations may cause a delay as these may cause the tech pack to be continuously modified and updated.

When it comes down to product creation, the main phase is the sampling process. It is sometimes inevitable to do a resampling when the client is not satisfied with first custom swimwear sample. Corrections and modifications will then be made to make sure the next sample will be according to the client’s preferences and expectations. If the sampling requires two or more trials, then it means that there is something wrong with the coordination. Make sure to work with a clothing manufacturer that has clear process in place to make your beach wear.

How to make custom swimwear requires creative designs.

Tips for Sewing & Fabric Choices for Custom Swimwear

The sewing process in the production line is arguably the most critical process in all of production. Lycra or Spandex is the most common fabric used for swimwear and this kind of fabric is best known for its elasticity. Swimwear is naturally designed to be body hugging or fitting which makes the fabric’s elasticity crucial to the design. If determined and handled correctly, how to make custom swimwear basically follows the standard clothing new product development process.

When it comes to the swimwear’s lining, a different fabric is used which is preferably more elastic and lighter compared to the main fabric. You can still use lycra or Spandex but make sure you pick a variety which is more elastic and lightweight. The lycra fabric family have a lot of variants under its type and you can simply mishmash your choices depending on their use on the swimwear. Make sure to remember the lining fabric should be more elastic and light compared to the custom swimwear’s main fabric.

Elastic fabrics come in 2-way or 4-way stretch. The 2-way stretch stretches horizontally while 4-way stretch fabrics stretch both horizontally and vertically. It is important to be aware of the stretch type to be able to predict the fit of the swimwear and make sure it is not too loose nor too tight for its wearer despite the stretching factor. Keep in mind the fabric’s stretchability goes around the body and is not only limited to a certain section when using the same fabric everywhere.

For sewing tools, always use ballpoint pins and stretch needles since these tools are specifically designed for dealing with stretchable fabrics. For the thread, use polyester when sewing bathing suits or swimming trunks. The fabric is meant to be stretched a lot which also applies to the thread being used in the sewing process. Lastly, it is perfect if you have a serger or overlock machine which uses three or four threads for intertwined stitches perfect on how to make custom swimwear. When you follow these tips, there shouldn’t be many issues with creating your own swimwear clothing line. You can find so much inspiration on Instagram and on fashion pages such Vogue–just get started.

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