What Do You Wear Underneath A Wetsuit?

scuba diving getting out

Going scuba diving and are wondering what do you wear underneath a wetsuit? It is a commonly asked question not only by new scuba divers but by surfers, snorkelers, and more. It is a good question especially for people who have not used one before.

This is really up to you what to wear but there are a number of reasons to wear something underneath a wetsuit. Some of those reasons being extra insulation, protection, and most importantly especially if you are renting a wetsuit is hygiene.

In today’s post, we will go through in more detail what do you wear underneath a wetsuit, so let’s get started!

Read more on common questions asked by divers

Reasons To Wear Something Underneath A Wetsuit?

Before getting into what to wear underneath a wetsuit, we need to explore reasons to wear something under a wetsuit. There are 5 main reasons, these are as follows.

  • Hygiene.
  • It is more comfortable.
  • Protects you from rubbing or chafing.
  • It adds insulation.
  • Common decency.


I rate this as the most important. The reason for this is that most scuba divers starting out will rent a wetsuit. The wetsuit would have been used multiple times before and people pee in the sea while diving.

Just the idea that it is possible to direct contact with the skin, is reason enough to wear something. Most dive shops will clear wetsuits after use but it is the idea of it.

Also, the wetsuit may not have been cleared properly, this could open you to infections. Therefore if you want to protect yourself then you should not wear wetsuits without an undergarment.

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It Is More Comfortable

It can improve your comfort and as a result, will enhance your diving experience. When renting a wetsuit you might find the wetsuit cumbersome which will encourage you to wear undergarments since it will help.

Some divers have reported that wearing a wetsuit alone is difficult and can be painful.

Protect You From Rubbing Or Chafing

If you wear a wetsuit over a reasonable period of time, you might start to notice some skin soreness and chafing. The most common areas include the armpits, neck, and between the legs.

It can get quite painful as a result of the rubbing to develop sores and chafing. Another factor to this is the different materials that wetsuits are made from. This can lead to rubbing especially if you wear it for a long time.

In worst care scenarios the sores and chafing can develop into blisters which can lead to more serious wounds. This spoils your fun so you should purchase high-quality undergarments to stay safe. It also allows you to wear the wetsuit for long without developing chaffing.

It Adds Insulation

Wearing undergarments can play an important in adding extra insulation. Most divers prefer thin layers of undergarments that will protect them in cold waters. Additionally, it is also important to choose the best material that can maintain a temperature that makes you comfortable.

Some undergarments also offer protection against UV rays, insect bites, and stings. These make your diving experience exciting and safe.

scuba diving

Common Decency

While out diving on a boat with other divers, you will have limited room to change in and out of your wetsuit. Wetsuits are the best of times are tricky to put and take off.

You don’t want to end up accidentally flashing someone and this could cause offense to someone.

What Do You Wear Underneath A Wetsuit?

We have covered the reasons why wear something under a wetsuit. Now let’s explore what to wear under a wetsuit. There are 5 main items to wear under a wetsuit, these are as follows.

  • Diving Shorts, shorts, or speedos.
  • Bikini and swimsuits.
  • Rash guards and compression shorts.
  • Full body jumpsuits.
  • Diving briefs.

Diving Shorts, Shorts Or Speedos

Diving shorts are among the best options because they provide some insulation. You will need to make sure that the diving shorts are made from good material that is light and buoyant to make you comfortable.

Diving shorts that are made from neoprene are very reliable because they are ultrasoft and they can easily stretch. It is also unisex so both men and women can wear it depending on their preference.

Also, it is perfectly okay to wear shorts or speedos under your wetsuit. Cause some shorts are bulky, you should use a broad pair of shorts as they are not as bulky.

Bikini And Swimsuit

it is perfectly okay to wear a bikini or a swimsuit under your wetsuit. Both will work as they are not bulky it really is your personal preference.

Rash Guards And Compression Shorts

The rash guards and compression shorts help in keeping your upper body warm. They can be the best first layer especially if you are diving in cold waters.

Additionally, there are lots of these products in the market which will give you a good range of options to choose from and the best one that will suit your needs.

scuba diving

They also protect you from chaffing which is a common problem with wetsuits. You will also benefit from the insulation if you are diving in colder waters. The most viable option is long-sleeved rash guards though some short sleeves are also comfortable when worn around the beach.

The good thing with rash guards and compression shorts is that it made using lightweight materials and elaborate thermal properties.

Full Body Jumpsuits

Full body jumpsuits are the best choice if you want to stay warm. It offers full-body coverage, therefore, has good heat retention. They are also made using ultra-thin neoprene material that helps to provide very good insulation.

It comes in various designs to suit all genders. You can check it out in your local store or order online but always prioritize quality.

Diving Briefs

A diving brief is used when diving in warm waters because you might not require additional layers to stay warm. It also offers protection on your sensitive body parts especially if you are renting a wetsuit.

Some briefs have been enhanced with Lycra to make it more comfortable as convenient because of its durability. They are also chlorine-resistant and stretchable to make them easy when diving.

Will My Wetsuit Stretch?

Wetsuits are made from neoprene material that is a type of synthetic rubber. It is able to maintain flexibility over a wide temperature range. It also is able to stretch to fit your body.

A cheaper wetsuit will stretch a little. The problem with a loose-fitting wetsuit is it can be hard to move in and not as comfortable in the water.

Wrapping Up

Finally, yes you should wear something under your wetsuit. There is a variety of reasons for this from protecting your skin from chafing, insulation, and importantly for hygiene reasons. Whether it is shorts, a swimsuit, or diving briefs it is well worth wearing something under a wetsuit.

And that’s it for now! I’d love to know if this guide on what do you wear underneath a wetsuit has helped you. Let me know if you have any questions and let me know if there is more to add.

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Wear Underneath A Wetsuit

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