What Do You Wear In A Sauna?

Heading to a sauna for the first time can bring up a surprisingly practical question: what exactly do you wear? The short answer is that most people wear a towel, a swimsuit, or nothing at all, depending on the sauna type and the facility’s rules. In a traditional Finnish sauna, nudity is the norm, while in a public gym sauna, a swimsuit or wrapped towel is standard. The most important rule is to keep the bench clean and dry by always sitting on a towel.

What Do You Wear In A Sauna?

Your choice of sauna attire depends almost entirely on where you are. Public saunas in gyms and spas almost always require a swimsuit or a towel. This is about hygiene and shared space. Private or traditional Finnish saunas often follow a different cultural norm where people sit naked, using only a towel for sitting on.

Cotton towels are the most common choice. They are absorbent, breathable, and dry quickly. Many facilities specifically ask you to bring two towels—one to sit on and one to dry off with. If you plan to move between a sauna and a cold plunge or shower, having a dry towel waiting outside is essential.

For those who prefer more coverage, a swimsuit is perfectly acceptable in most public settings. Choose a suit made of quick-drying material. Avoid wearing wet swimsuits into the sauna, as the moisture can make the heat feel less tolerable and increases the risk of skin irritation.

Why You Should Not Wear Workout Clothes

Wearing your gym clothes into a sauna is a common mistake. Synthetic fabrics like polyester and spandex trap heat and moisture against your skin. This can cause overheating, excessive sweating, and even heat rash. The sauna is designed to let your skin breathe and sweat freely; synthetic layers block that process.

Cotton t-shirts and shorts are slightly better but still not ideal. They absorb sweat and become heavy and uncomfortable. More importantly, a soaked cotton shirt holds heat close to your body, which can make the experience feel more intense than it should. The sauna is not a place to continue your workout. It is a place to rest and let your body respond to the heat.

Jewelry is another item to leave outside. Metal rings, necklaces, and earrings absorb heat rapidly and can burn your skin. The same applies to watches and fitness trackers, which may not be rated for the high temperatures and humidity inside a sauna.

What To Wear In An Infrared Sauna

Infrared saunas work differently from traditional saunas. They use infrared light to warm your body directly rather than heating the air around you. Temperatures are typically lower, usually between 120°F and 140°F, compared to the 150°F to 195°F of a traditional sauna.

Because the air is not as hot, you can wear more clothing if you prefer. Light cotton shorts and a t-shirt are fine. Many people still choose to sit with just a towel. The key difference is that you will sweat more at lower temperatures, so breathable fabric matters even more.

Some infrared sauna users wear minimal clothing to maximize skin exposure to the infrared light. While this is a personal choice, there is no strong evidence that wearing less improves the health benefits. The primary effect of infrared saunas is the same as traditional saunas—an increase in core body temperature and sweating.

What To Wear In A Steam Room

A steam room is not a sauna, but the two are often confused. Steam rooms have near-100% humidity and lower temperatures, typically around 110°F to 120°F. The rules for attire are similar to a sauna, but the environment changes your options.

Swimsuits are the most common choice in public steam rooms. The constant moisture makes cotton towels heavy and slow to dry. Some facilities allow nudity in steam rooms, but this is less common than in traditional saunas. Always check the posted rules before entering.

Never wear shoes in a steam room. The wet, warm environment is a breeding ground for bacteria and fungi. Most facilities provide flip-flops for walking to and from the steam room, but you should remove them before sitting on the benches.

How To Choose The Right Towel

The towel you bring matters more than most people realize. A standard bath towel is usually sufficient, but larger towels offer more coverage and comfort. Some people prefer a traditional Finnish sauna towel, which is larger and thinner than a standard bath towel, making it easier to wrap and sit on.

Always sit on a towel, even if the sauna has wooden benches. This is not just about comfort. It protects the wood from sweat and body oils, and it protects you from the bench, which can be very hot. In most public facilities, sitting directly on the bench without a towel is against the rules.

Bring a second towel to dry off with after your session. Leaving the sauna wet and walking into a cooler area can cause a sudden drop in body temperature. Drying off immediately helps your body regulate and reduces the risk of feeling dizzy or lightheaded.

What About Going Naked?

In Finland, the birthplace of the sauna, going naked is the standard practice. It is not seen as sexual or inappropriate. It is simply the most practical way to use a sauna. Clothes trap sweat and bacteria, while a bare body allows sweat to evaporate and the skin to breathe.

In the United States, public saunas almost always require swimwear or a wrapped towel. Nudity in a public sauna can make others uncomfortable and may violate local laws or facility policies. If you are using a private sauna at home or at a friend’s house, you can follow the host’s preference.

If you are unsure, start with a towel or swimsuit. You can always adjust based on what you observe others doing. The goal is to be comfortable and respectful of the shared space.

Is There A Dress Code For Sauna Etiquette?

Yes, and it is simpler than most people expect. The core rule is to always sit on a towel. This applies whether you are naked, wearing a swimsuit, or wrapped in a towel. It keeps the bench clean and dry for the next person.

Remove your shoes before entering the sauna. The sauna floor is not a walking surface. Most facilities have a bench or rack outside the sauna door for shoes. Wearing shoes inside the sauna brings dirt and bacteria into a space where people sit barefoot or in bare feet.

Shower before entering the sauna. This is standard practice in most facilities and is required in many. It removes sweat, oils, and lotions from your skin, keeping the sauna cleaner and allowing you to sweat more effectively.

Do not bring phones, books, or other devices into the sauna. The heat and humidity can damage electronics, and the sauna is a space for rest and quiet.

How To Dress For The Cool Down

What you wear after the sauna is just as important as what you wear inside. Your body temperature is elevated, and your blood vessels are dilated. A sudden drop in temperature can cause lightheadedness or fainting.

Have a dry towel and loose clothing ready. Many people prefer a robe or a loose-fitting shirt and shorts for the cooldown period. Avoid tight clothing, which can trap heat and make you feel uncomfortable.

Drink water before and after your sauna session. You will lose a significant amount of fluid through sweating. Replacing that fluid helps your body return to its normal temperature and prevents dehydration.