Why Do Guys Wear Underwear Under Swimsuits?

No doubt, swimsuits are most likely to be your favorite summer wear. Asides from being simple to put on, they allow for an assortment of water activities to be done with ease. What’s more, they are made from impressive materials, which means you have one less thing to worry about, especially if you will be using them in a chlorinated pool. That said, at first glance, swimsuits appear to be the simplest form of clothing wear.

But then, chances are you’ve seen other guys wearing boxer briefs alongside their swimsuits. Interestingly, many of those guilty of this act don’t know the truth about the trend. In most cases, they often adopt it subconsciously without questioning its rationale. If you are different or interested, you might beg to differ and challenge the status quo. You might ask the question; why do guys wear underwear under swimsuits?

The reasons guys choose to wear undergarments alongside swimsuits is diverse. They range from chaffing to other more conspicuous signs like hiding erections or flattering effects. Regardless of why they engage in it, wearing underwear under your bathing suit isn’t the best option.

Is It Right To Wear Underwear Under Swimsuits?

No, you shouldn’t. From the white sandy beaches to serene pools and bustling water parks, the question of whether or not to wear undergarments alongside a swimsuit is on everyone’s mouth. It remains one of the most argued topics. Guys who practice it fervently defend their actions with reasonable arguments. And those disgusted by it, sort to relentlessly air their opinion. Regardless of your inclination, the fact remains that you shouldn’t wear underwear under swimsuits.

Reason Guys Wear Underwear Under Swimsuits

While it’s inadvisable to wear undergarments with your swimwear, those that engage in it do have valid grounds to do so. It gives credence to the fact that every rule or norm has exceptions. Below are some reasons guys chose to wear underwear with their swimsuits:

1. Chafing 

Often, swimsuits chafe, and when it does, it can be pretty unbearable. Chafing occurs as a result of the waterproof material rubbing against the skin. This can lead to a painful experience. No doubt, this seems like a valid reason, and you might feel great in your swimwear as long as it remains dry. If you have your swimsuit on without taking a dip, then you can genuinely have your underwear under your swimsuit.

In like manner, if you’re wearing a swimsuit to show off your abs and well-toned body, with no intention to swim, then having underwear on is justifiable.

2. Lack of Inner Lining

Not all swimsuits have an inner lining. It means there’s no extra layer between your skin and the suit itself. When wet, such a bathing suit will plaster itself to the body. In such an instance, your groin region will become prominent, and if you do get a bulge, you can be sure of it being conspicuous. Asides from this, suits without inner lining, are even more susceptible to chaffing, and you can also suffer from it becoming see-through when wet. In this instance, it makes sense to wear underwear under your swimsuit if you don’t want your junk on display.

Quick Hack

If you are shopping for a swimsuit, it’s essential to identify one having a lining and one not. You can do this by visual inspection, and all you have to do is turn your pick inside out. Next, look for an additional layer of fabric under the primary layer. This should be easy to distinguish as it will most likely be different colors. Gently try to separate this layer from the main material with your fingers; it should easily separate.

ALSO READ: Do You Wear Undies Under Board Shorts?

Why You Shouldn’t Wear Underwear Under Your Swimsuit

As much as there are reasons for you to want to wear an undergarment alongside your swimsuit, there are also reasons that can persuade you into having a rethink. While these reasons are not diverse, they fall under two major categories of water usage and transparency:

1. Usage in Water

Swimsuits come from robust, durable, and reliable materials that make them highly suitable for water use. Their strength is also impressive at withstanding the effects of harsh pool chemicals and saltwater. Most importantly, swimsuits absorb less water and dry out almost instantaneously. Unlike swimsuits, several undergarments come from materials such as cotton, which are less durable when compared to spandex or polyester. This flaw means they are highly susceptible to damage by chlorine, salt, and other chemicals present in pools and oceans.

If this doesn’t sway you into ditching the underwear under the swimsuit train, this should. Consider that regular underwear tends to absorb ample water when in water, which makes it heavy and increases drag. If you are swimming professionally, you know the importance of reducing drag and maintaining a streamlined shape in the water. Simultaneously, additional water means more time to dry out.

2. Transparency

When it comes to getting in the water, swimsuits are a suitable alternative to underwear. In most cases, bathing suits come with an additional layer of fabric to provide extra comfort while also preventing the visibility of your groin. And in many male swimsuits and swim shorts, this extra lining in the crotch area acts as an alternative to underwear. This additional fabric level is generally made from mesh material with several small holes to allow for aeration.

3. Other Reasons

Asides from the two mentioned above, here are some other reasons you might want to stay away from having underwear under your swimsuit:

  • Having underwear under your swimsuit will most certainly be visible. And this can be pretty unpleasant, disgusting, and unattractive to onlookers.
  • Having two garments on simultaneously in the blistering heat of the summer months can be unforgiving. And excerpt, you are interested in developing heat rashes, you don’t want to have this combination. If you do, it should be for a short time.
  • Asides from personal worries, having underwear or other regular clothes on with your swimsuit can introduce dirt, germs, and water-borne disease to a pool. This can be a potent source of harm to other swimmers, which should be a source of concern to you.
  • Underwear can introduce dust particles as well into the pool. This has the potential of throwing off the chemical balance of a swimming pool. Chemicals present in a pool helps to disinfect and protect against germs, making it essential to maintain the balance by keeping dirt away.

Can I Wear an Underwear as a Swimsuit?

It all comes down to personal preference when deciding whether or not you should wear underwear as a replacement for a swimsuit. In most cases, swimming pools and water parks have different rules regarding swimming garments that they accept. Many often require you to wear an appropriate swimsuit before using their facilities. To avoid unpleasant experiences, it’s inadvisable to visit pools or water parks with an undergarment.

Again, many pool areas love uniformity and a sense of decency, which is why the rules appear to be the same almost all over, except for designated adult pools. But in swimming pools with families and kids, the swimsuit provides essential coverage and won’t slide or slip up your body. This guarantees against accidental nudity or wardrobe malfunction; this isn’t always so. However, you should avoid substituting underwear for a swimsuit since they lack string or bands to provide adequate grip on the body.

But then again, at a public beach, nearly all the rule books are thrown out. You have more laxity to do what you want, and you can, without a doubt, substitute underwear for a swimsuit. Underwear such as bras, briefs, boxers, and just about anything is acceptable. Regardless, it’s best to have a swimsuit in hand, just in case.

What Should Men Wear Under a Swimsuit?

Even with the reasons given above, not many will be pretty comfortable having their swimsuit on without any underwear. This becomes even more vivid if the swimsuit is a rental. While it’s not advisable to have underwear under your swimsuit, below are some tips on what you can do or wear:

1. Swim Briefs

Also referred to as Speedos, swim briefs are a whole lot better than having a regular undergarment under your swimsuit. They have similar characteristics compared to underwear but with a significant difference. Unlike underwear, swim briefs come with a design that allows for water and swimming. Moreover, they don’t chaff or soak up water and are more comfortable. It is by far a better option if you wish to have something under your swimsuit. 

COOFANDY Mens Swim Trunk Swimwear Bathing Suit Swim Brief

COOFANDY Mens Swimwear Swimming Brief Square Cut Tight Sexy Trunks Bathing Suits


2. Compression Shorts

If swim briefs aren’t your thing, you can also rely on compression shorts for whatever reason. This short is for use in water, and you don’t have to worry about chafing or discomfort. Compression shorts are tight underwear used in swimming, running, cycling, and other sports. Coming in various lengths and sizes, they are usually long. So depending on the type of swimsuit you have on, you can find compression shorts that match length to avoid coming on display.

DEVOPS Men’s Compression Shorts Underwear

DEVOPS Men's Compression Shorts Underwear with Pocket (3 Pack) (Large, Black/Olive/White)


Conclusion – Why Do Guys Wear Underwear Under Swimsuits?

Why do guys wear underwear under swimsuits has been a reoccurring question for a long time. And although there are divergent views, the fact remains that it’s a practice that should be discouraged. Be that as it may, we will still see guys with underpants on while in swimsuits, and all you can do is educate them. Regardless, wearing any underwear under your swimsuit should be in specific cases, as stated above. When going in the water, avoid it, and when lounging around, you can if you so wish. 


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