The Best Bathing Suit Liner for Bottoms

The Best Bathing Suit Liner for Bottoms

A bathing suit liner, or swim diaper, is a type of underwear designed to absorb the entirety of liquid waste in your bathing suit. Most liners have an absorbent layer that’s covered by a cloth surface.

A liner can be worn for several reasons. If you have bowel movements that are loose and/or watery, this could leak out of your bathing suit and onto the surface of the water. It can also be used to get rid of cameltoe in bikini bottoms.

A bathing suit liner is a protective layer that goes between your bathing suit and your body. It protects the fabric of the suit, so you can wear it as many times as you want without worrying about damaging it with sunscreen or lotion.

The liner is usually made of the same material as the suit but is a different color. This way, if you don’t want to see any skin through your bathing suit (or if you feel more comfortable with a second layer) you won’t notice the liner at all.

Most liners are also removable so that they can be washed separately from the rest of the swimsuit.

Why You Should Use a Bathing Suit Liner

With a bathing suit liner for bottoms, you’ll just be able to slip it on and forget about it. No need to worry about your bathing suit bottoms falling down or riding up, no matter how active you get in the water. Plus, it’s made from soft, comfortable fabric that will keep you more comfortable than ever.

But that’s not all. A swimsuit liner also helps protect your bottom from chafing and the chemicals in swimming pools by providing an extra layer of protection between your skin and the bathing suit fabric.

That means that whether you’re on the beach or in an indoor pool, you’ll feel more secure knowing that your skin is protected both from rubbing against the bathing suit fabric and possible irritants like chlorine or salt water.

And when it comes time to apply sunscreen or tanning lotion? You won’t have to worry about any of those products leaking through onto your skin because there’s another layer underneath.

Best Bathing Suit Liners for Bottoms

1. True Fit Try On Clear Cl-2 Hygienic Liner for trying On Women Swimsuit

True Fit Try On Clear Cl-2 Hygienic Liner for trying On Women Swimsuit - Hygiene product for Ladies Swimwear Hourglass Shape - 1000Count, Clear, Clear with Blue Copy


The TrueFit Try On Clear Cl-2 Hygienic Liner for trying on Women Swimwear is designed for ladies who want to try on swimwear without leaving their own home. The Invisible Liner is made from an extremely thick low density polyethylene plastic.

This liner will protect your investment and make sure that when you get home you can see straight away whether it fits or not, saving you time and money. As well as being heavily weighted at the bottom it also has handles stitched onto each side that allow ease of pick-up and placement back into its retail box or stand up bag.


  • It is very hygenic.
  • It is thin and comfortable.

2. True Fit Protective Hygienic Clear Adhesive Liners Strips Swimwear Bikini Lingerie

True Fit Protective Hygienic Clear Adhesive Liners Strips Swimwear Bikini Lingerie (50)


 True Fit Protective Hygienic Clear Adhesive Liners Strips Swimwear Bikini Lingerie is a must have accessory for all women. These liners stick to your swimsuit and protect it from environmental damage while it’s not in use.

The scratch-free adhesive strips protect your favorite swimwear from rough seams and uncomfortable tags. With the True Fit Protective Hygienic Clear Adhesive Liners Strips Swimwear Bikini Lingerie you will always be ready to hit the beach or pool.


  • It is very comfortable.
  • It protects your swimsuit.

3. Loving My Bump Adhesive Protective Hygiene Try On Stickers/Labels for Swimsuits, Swimwear and Lingerie

200 Adhesive Protective Hygiene Try On Stickers / labels for Swimsuits, Swimwear and Lingerie (200)


The material is premium waterproof adhesive paper. It is easy to use and washable. This product can be used anywhere you need to protect your lingerie (bra, underwear, swimwear) from stains or urine/menses during your period or incontinence or postpartum bleeding.

So many products for this purpose either leave marks themselves, don’t work well enough or even irritate sensitive skin (especially with acids); which makes these stickers perfect for those who want convenience without having to worry about those issues.


  • It is comfortable and thin.
  • It does not irritate the skin.

4. Rael Organic Cotton Cover Incontinence Liners 

Rael Organic Cotton Cover Incontinence Liners - Long Size, Bladder Control Liners, 4-Layer Core Protection with Leak Guard Technology (36 Count)


 For women’s swimwear protection, Rael’s Organic Incontinence Liners are designed for bladder control and maximum comfort. These liners are made of 4-layer core protection with leak guard technology, to provide a more secure feeling.

Each liner has a soft stretch knit construction that is breathable, comfortable and absorbs liquid quickly.

Rael reusable incontinence liners are convenient to use and ideal for preventing leakage. Made from 100% organic cotton material, these long size liners are hygienic and safe for sensitive skin.

This incontinence liner saves you from having to wash out your favorite bikini after wearing it for the day. It is a hygienic way to protect your swimming suit from sweat and urine.


  • It is reusuable.
  • It is hygienic and safe.
  • It protects your bathing suit.

5. True Fit Try On Clear Knife Cut Clkc-2 Hygienic Liner for Trying On Swimsuit & Lingerie 

True Fit Try On Clear Knife Cut Clkc-2 Hygienic Liner for Trying On Swimsuit & Lingerie - Hygiene Product for Women's Swimwear - 1, 000Count, White


 With the True Fit Try On Clear Knife Cut Clkc-2 Hygienic Liner for Trying On Swimsuit & Lingerie, you can now try on swimsuits and lingerie at home with confidence, while keeping away any germs. This innovative liner is designed to cut the potentially harmful bacteria from your favorite clothing.

It’s effortless. Just place your desired piece of clothing in between this proven protection and slide it over your body – it’s that easy. It is a hygenic and practical solution to prevent the spread of bacteria, protecting women’s swimwear. This product is non-toxic, safe and easy to use.


  • It is non toxic and safe to use.
  • It is designed to keep bacteria away.
  • It protects your swimsuits from stains.

6. Lefresh Organic Cotton Cover Liners – Unscented, Vegan, Chlorine Free

Lefresh Organic Cotton Cover Panty Liners - Unscented, Vegan, Chlorine Free- Daily Feminine Pads Light Absorbency (Long, 80 Count)


Lefresh organic cotton cover pantyliners are made with 100% organically grown unbleached cotton flannel.

These organic cotton pantyliners are chlorine-free and unscented, to give your skin a gentle feel and fresh fragrance. Lefresh organic cotton cover pantyliners are ideal for daily use, protecting women’s swimwear or other delicate fabrics from body moisture, discharge and blood.

The cotton lining is soft to prevent irritation, while the natural cellulose material absorbs moisture and odor.


  • It is hygienic
  • It is thin and comfortable.

Things You Should Consider When Buying Bathing Suit Liners for Bottoms

1. Quality

When it comes to bathing suit bottoms, quality is key. Swimwear is something that you want to last, especially since you’ll likely be wearing it every summer for years to come. But what separates a solid bottom from a cheap one? There are a few main things: thickness, material type, size, and style.

What’s the difference between medium and regular thickness? Thinner liners are more comfortable but can be worn less often because they will wear out faster. If you need your liner bottoms to last all summer long (and even into the next) then a thicker pair will hold up better in the water, sun and sand.

Material type is important too. The wrong material can lead to discomfort or even rashes down there. Liner materials include nylon/spandex blends as well as cotton blends (we don’t recommend cotton).

Each of these materials has pros and cons we suggest doing some research on which works best for your needs before choosing one. Lastly, make sure that the size fits your shape. You can take measurements of yourself at home before ordering if you’re unsure what size to go with.

2. Brand

The brand of a bathing suit liner is an important consideration. Many bathing suit liners are made by the same companies that manufacture swimsuits.

This means that these companies manufacture both the bathing suit and its liner in tandem, ensuring that the materials match up and complement each other properly. However, you can also find some liners made by companies that specialize in swimwear accessories.

These companies typically use high-quality materials for making their lines and do not compromise on quality to make a quick profit.

3. Price

If you’re looking for a bathing suit liner for your bottom, you might have trouble finding one in your price range. While the majority of swim liners are priced in the $20 to $30 range, there are plenty of liners that cost upwards of $50.

If you can’t find a bathing suit liner in your price range, don’t worry, there are still plenty of options out there.

How much should I spend on my first bathing suit liner?

The answer to this question is entirely up to you. We typically recommend spending as much as you can afford on a good quality bathing suit liner for bottoms, since this will make it easier for you to get used to wearing one and enjoy it more often.

However, if you’re just starting out with swimming or water sports and aren’t sure how often you’ll wear one in the future, then we would advise not spending more than $30 on your first pair. A lower-priced option will give you time to decide if they’re right for you before investing too heavily into them.

4. Durability

One of the most important factors to consider when choosing a bathing suit liner is durability. You want your liner to last for as long as possible, so you don’t have to keep buying new liners.

Look for a liner that is made from quality materials that are durable and won’t get damaged by water and sunlight. You also want to make sure the bathing suit liner will stand up to frequent washing, so if you plan on wearing it multiple times, check the instructions and make sure it can be machine washed.

5. Material

In terms of material, it’s possible to find bathing suit liners for bottoms made out of a variety of fabrics. Cotton and spandex are among the most popular choices, but nylon and modal have also proven to be common options.

Polyester, lycra, and blends are frequently used as well. Microfiber is another fabric that’s commonly used in the construction of bathing suit liners for bottoms.

How Do I Use Bathing Suit Liner for My Bikini Bottoms?

Although a bathing suit liner is a relatively simple garment, it can be tricky to put one on if you’re unfamiliar with the process.

The most common mistake people make is not adjusting their liner after they’ve attached it to their bikini bottoms. Even if you have a two-tiered liner (one that’s placed within another layer of fabric), it’s important to ensure your swimsuit bottoms fit perfectly before tightening up the straps and clipping down the backside.

Otherwise, you could end up with an unsightly sag or back bulge from the weight of your bottom half rubbing against your bathing suit top. To avoid this, try pulling your bottom down and making sure that no fabric is sagging or peeking out beyond the edge of your liners (even just a little bit in any direction).

You can also adjust any loose straps or hooks at this time to achieve a better fit.

If there’s fabric showing past where you’d like your swimsuit bottom liner to sit, take a pair of scissors and trim away some excess material in whatever places: along with straps, under chins, above belly buttons, wherever needs them.

Just be careful not to cut too much away, lest you leave yourself exposed while frolicking in public waters.

Types of Bathing Suit Liners to Get for Your Swimsuit Bottoms

When you wear a bathing suit, you want to be careful not to let any bits of water in between the fabric of the suit and your body. This could ruin the effectiveness of your swimsuit and prevent you from staying safe while swimming. 

ALSO READ: How to Pee in Swimsuit (The Right Way)

To avoid such an occurrence, there are different types of liners that can be used with your swimsuit bottoms. There are some cloth-based liners that you can ship for free or for a small cost, and these should always be used when swimming in chlorine pools. 

If you use plastic liners made from latex, plastic or nitrile rubber, then these can also be very effective but they will not protect against chlorine if they come into contact with it.

READ ALSO: How to Poop in Swimsuit

Therefore, if you use these plastic styles of bathing suit liners then make sure that they are lined with the same material as your swimsuit bottoms to ensure that no part of chlorine seeps between them. 

Benefits of Using a Bathing Suit Liner for Your Bottoms

Many times, when going to the beach or swimming in a pool, we find ourselves rushing to protect our skin from the sun. Even with sunscreen, it’s still important to use a bathing suit liner for your bottoms to prevent chafing and irritation.

1. It Prevents Skin Irritation

This is especially true for women who wear bathing suits that do not cover their entire torso and bottom.

A bathing suit liner for your bikini bottom will provide a layer of protection between your skin and the bathing suit, which allows you to keep applying that sunscreen all day or even throughout an entire monthlong vacation in Hawaii without worrying about skin damage.

2. It Prevents Chafing

The best thing about using a bathing suit liner with your bikini bottom is that it prevents chafing as you move around during exercise or any other activity.

Bikini bottoms can be especially prone to this type of friction because they’re so close to the inner thighs. Using a bathing suit liner will prevent this friction from occurring due to its soft texture in addition to preventing inner thigh chafing by providing a cushion as you move around.

You’ll also notice how much longer these liners can last since you won’t be subjecting them to wear and tear from harsh chemicals used in body lotions or harmful environmental factors like sand in your swimsuit while at the beach.

READ ALSO: Can Wearing a Wet Bathing Suit Cause Yeast Infection?

Conclusion – Bathing Suit Liner for Bottoms

Bathing suit liners are a product designed to protect the fabric of your bathing suit bottoms. In addition to protecting the fabric, they can also protect against chafing which is common in bikinis.

Why use a bathing suit liner for your bottom?

Using a liner for your bottom will help protect the fabric from wear and tear due to friction from your skin. It will also keep you comfortable by preventing chafing which can occur with repeated movement in bikinis or other bottom styles such as thongs and G-strings.

You can wash and care for the lining of a bikini bottom by washing with cold water and mild detergent on a gentle cycle and then drying away from direct heat sources (like sunlight). Do not iron or bleach these items as it can cause damage to both fabrics over time; instead, line dry them over something like an air mattress which will help absorb excess moisture after washing.


You may see some products here which has either been used by us or independently selected by (obsessive) editors. As an affiliate of Amazon, Anything purchased through our links may earn us a commission at no extra cost to you. 

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