Quick Guide: Making Your Swimsuit Bottoms Smaller Without a Single Stitch

You’ve found the perfect swimsuit top, but the bottoms? They’re a bit too big. Don’t fret, there’s no need to reach for a needle and thread. This article will show you how to make your swimsuit bottoms smaller without a single stitch.

Say goodbye to saggy, baggy swimwear. With a few simple tips and tricks, you’ll be rocking your swimsuit with confidence. Whether you’re heading to the beach or lounging by the pool, a well-fitted swimsuit is a game changer.

Key Takeaways

  • Gathering the right materials, including fabric glue, blunt-end tweezers, and chalk, is the first step to making swimsuit bottoms smaller without sewing. These tools will assist in making precise adjustments and securely holding them in place.
  • Trying on the bikini bottoms and pinpointing areas needing modification is an essential step. Marks made with chalk act as guides for gluing unnecessary fabric folds.
  • Adjusting the waistband without any sewing needed involves cutting a small slit in the waistband’s inside seam, inserting a piece of elastic that is slightly smaller than your waist measurement, and securing it with fabric glue.
  • Elastic bands are utilized to adjust the leg openings for a snug fit. Prepared elastic bands of a slightly shorter length than the swimsuit’s waistband are inserted into the waistband through an incision. They are then shifted around the waistband and secured with fabric glue.
  • The process requires patience and precision to achieve a comfortable and secure fit without causing discomfort or unsightly bulges.
  • This method allows for a custom fit swimsuit without using a needle or thread, proving a swimsuit can be tailored to fit the individual, not the other way around.

Gather Your Materials

Before you dive into modifying your swimsuit, you’ll need to gather some necessary materials. Make sure you have all these items readily available to ensure a smooth process from start to finish.

Fabric Glue: This type of glue is designed specifically for fabrics which means it’s machine washable and won’t damage your swimwear. Aleene’s Original “OK to Wash-It” Fabric Glue is a reliable brand that many DIY enthusiasts swear by.

Blunt-end Tweezers: You might be wondering why you need tweezers for this task. Here’s why: tweaking little folds of fabric, especially the slippery kind like swimsuit material, can be a struggle. Blunt-end tweezers make this much easier.

Chalk: Grab a piece of chalk handy for marking areas you’ll adjust. Petty much any chalk will do, but tailoring chalk is best as it’s designed to provide clear, visible marks on fabric that are easily removable.

Here’s a simple table to summarize your essential materials for this process:

Fabric GlueTo hold folds and adjustments in place
Blunt-end TweezersTo grip and adjust fabric folds
ChalkTo mark areas needing adjustment

With all your materials ready, you are now set to start shrinking those swimsuit bottoms without sewing. Continue reading to the next section to further comprehend the easy steps involved. Remember, patience is key.

Try on the Bottoms

It’s time to get down to business. Your tools are ready and now it’s the moment for the most crucial step – trying on the bottoms. This part is essential as it will determine how much you need to adjust.

Slip into your swimsuit bottoms and stand in front of a full-length mirror. It’s important to stand normally without pinching in, puffing out, or flexing your stomach muscles. This will ensure the bottoms fit comfortably while you’re just going about your day at the beach.

It’s in this stage you’ll identify where adjustments are needed. Pinch in excess material on the sides and rear end. By doing so, you’ll be able to see how much smaller you want the bottoms to be.

Use your chalk to mark the areas where you pinched the fabric. Start by making a mark on one side, then repeat the process on the other side to ensure even reduction. These marks will serve as your guidelines for gluing.

Remember, when working with adjustments, less is more. You wouldn’t want your swimsuit to fit too tightly and become uncomfortable. If you’re still unsure about your size, err on the larger side. You can always repeat the procedure if necessary.

Do not remove the bottoms once you marked them. Readjusting them after you’ve already marked your spots could lead to unevenness.

The next step takes you closer to the final product – securing the fabric with fabric glue.

Adjusting the Waistband

Moving on to the waistband, there are a few tricks you can use to enhance comfort and fit. A tighter waistband can be just the solution if those bottoms are still sagging a little or simply not fitting the way you want them to. You don’t need a needle and thread or a sewing machine to make these adjustments.

Your primary tools for this job will be a pair of scissors, some strong fabric glue, and a piece of elastic. The elastic should be stretchy and dependable enough to withstand pool water and sun exposure.

You’ll start by cutting a small slit in the inside of the waistband. This is where the seam is usually positioned. Keep your slit small— about an inch should do. The idea is to create an opening wide enough for your elastic piece to slide right through, but not so big that it compromises the integrity of the bikini bottom.

Next, cut a strip of elastic that is slightly smaller than your waist measurement. For instance, if you’re a size 30 waist, try a 28-inch piece of elastic. You’re looking to snug up that waistband, after all.

Now comes the point where you’ll insert the elastic into the slit you just cut. Use whatever tool you’re comfortable with to guide the elastic through the waistband — a pencil or chopstick can work well. Be careful not to pull the elastic too tight. You want it to have a nice tension but not to where it’s uncomfortable.

Once this step is accomplished, secure both ends of the elastic together. Again, use your fabric glue here. After applying the glue, press the ends firmly together for a few seconds.

What you’re left with is a newly tightened and custom-fit waistband on your swimsuit bottoms. And the best part? You did it all without having to sew a single stitch. Remember, you’re aiming for the perfect fit—comfortable, secure, but not so tight it’s causing discomfort or unsightly bulges. So with nuances like these, patience and precision are key.

At this point, you’re not far from finishing your project. Next up: Adjusting the leg openings for a snug fit around those thighs. So keep reading to learn exactly how to take care of this final aspect of modifying your swimsuit bottoms.

Using Elastic Bands

You’ll find that elastic bands are crucial in making your swimsuit bottoms smaller without sewing. The first step involves ensuring you’ve got the right type of elastic. It’s vital to opt for swimwear-quality elastic to withstand water, chlorine, and salt, inherently present in swimming environments.

To commence adjusting your swimsuit, you’ll need to carefully measure and cut the elastic band to a slightly smaller length than your swimsuit’s waistband. Ensuring the elastic band is shorter creates the desired tightening effect when it’s placed inside the waistband and will provide a snug yet comfortable fit.

Next, make a small incision in your swimsuit waistband’s inner seam. Use enough caution so you don’t cut all the way through to the other side. This is the small entrance point where you’ll insert the prepared elastic band.

You might find it helpful to attach a small safety pin to one end of the elastic. It simplifies the process of maneuvering the elastic inside the waistband. Gently push the safety-pinned end into the incision and gradually shift it all the way around the waistband until it emerges from the opposite side.

Once you’ve moved the elastic all the way around the waistband and both ends are protruding from the incision, it’s time to secure them. Fabric glue proves handy in this step. Generously apply it to both ends of the elastic and then press them together until you are confident that they are firmly attached.

After the glue has dried, you might want to see if you can shift the bonded section of the elastic into the waistband through the incision. This gives a cleaner finish and keeps the altered waistband smooth around your waist.

Voila! You’ve successfully adjusted the waistband of your swimsuit bottom without sewing, providing a perfect fit and unbeatable comfort. Now, it’s onto befitting the leg openings, giving a shapelier and more tailored fit around your thighs. The process is similar, requiring careful measurements, precise cuts, and the diligent application of fabric glue. This ensures the swimsuit fits you, not the other way around. Be patient with the process, and you’ll have a personalized swimsuit in no time.


You’ve now mastered the art of making your swimsuit bottoms smaller without a single stitch. By using swimwear-quality elastic bands and fabric glue, you’ve been able to create a snug and comfortable fit. You’ve learned the importance of precise measurements and the role of a safety pin in maneuvering the elastic. The same method can be applied to the leg openings for a fully personalized swimsuit. Remember, it’s not just about making your swimsuit smaller, it’s about enhancing your comfort and confidence at the beach or pool. So, go ahead and flaunt your perfectly fitting swimsuit with pride. You’ve earned it!

What kind of elastic is suitable for adjusting swimsuit bottoms?

Swimwear-quality elastic is recommended for adjusting swimsuit bottoms due to its durability in water environments and its ability to retain shape and elasticity.

How is this elastic band inserted into the swimsuit bottom?

The elastic band is inserted into the swimsuit bottom through a small incision. A safety pin attached to one end of the elastic aids in maneuvering it through the waistband.

How is the elastic band secured?

The elastic band is secured with fabric glue. After it’s inserted through the waistband, the ends of the elastic band are glued together for a snug fit and a seamless finish.

How are the leg openings tailored?

The leg openings are tailored in the same way as the waistband. Precise measurements of the leg openings are taken and an appropriately sized elastic band is inserted with the help of fabric glue for a personalized fit.