Whether you’re stepping into your new home sauna for the first time or heading to the gym after a workout, one question stops everyone: what exactly should I wear in the sauna?
It’s a practical question that deserves a straight answer. The right clothing keeps you comfortable and safe while following proper etiquette. The wrong choice? Well, that can lead to overheating, burns from hot metal, or some awkward moments at your local gym.
Here’s what you need to know about sauna attire—from traditional Finnish practices to modern gym rules, plus what to absolutely avoid wearing (trust us on the jewelry thing).
Quick Answer: What Should You Wear in a Sauna?
At home: Go nude or wrap yourself in a cotton towel. This is the traditional Finnish way and gives you the best heat exposure and comfort.
At the gym: Wear a swimsuit or wrap a clean towel around your waist/body. Check your gym’s specific rules—most require some coverage.
Universal rule: Always sit on a clean towel, regardless of what you’re wearing. It’s hygienic and protects the wood benches.
Home Sauna vs. Public Sauna: Different Rules Apply
Your Home Sauna: Freedom to Choose
In your own sauna, you’ve got complete freedom. Most sauna owners go the traditional route—nude with just a towel to sit on. There’s good reason for this:
- Your skin breathes naturally and sweats freely
- No fabric trapping heat against your body
- Maximum comfort during 20-minute sessions at 175-180°F
- The authentic Finnish sauna experience
Going nude also creates that deep sense of relaxation and freedom that makes home saunas so special. Many couples find it’s the perfect escape for honest conversations away from the kids—something about the simplicity and vulnerability creates real connection.
If you’re not comfortable going nude (even in your own space), loose cotton shorts or a cotton towel wrap work perfectly fine. The key is keeping it minimal and breathable.
Pro tip for wood maintenance: After your session, splash some clean water where you were sitting and give it a quick scrub with a nylon brush. Keeps your benches looking fresh for years.
Public Saunas: Know the Local Rules
Gym saunas and public facilities have specific dress codes, and they vary quite a bit:
Most U.S. gyms require:
- Swimsuit or gym shorts (for men)
- Swimsuit or athletic wear (for women)
- Clean towel to sit on (always)
- Shower sandals or flip-flops
What works best at the gym:
- Men: Swimming trunks, board shorts, or clean athletic shorts. Skip the compression shorts—they trap too much heat.
- Women: One-piece swimsuit, bikini, or moisture-wicking athletic shorts with a sports bra. Avoid anything with underwire.
Always check your specific gym’s rules. Some are more relaxed, others have strict policies. Nobody wants to be that person who gets called out for breaking sauna etiquette.
Best Fabrics and Materials for Sauna Wear
Not all fabrics handle sauna heat the same way. Here’s what works and what doesn’t:
Good Choices:
- Cotton: Absorbs sweat, breathes well, stays comfortable when damp
- Linen: Lightweight, excellent breathability, dries quickly
- Bamboo: Natural moisture-wicking, antibacterial properties
- Terry cloth towels: Perfect for wrapping, sitting on, and wiping sweat
Avoid These:
- Polyester/Synthetic fabrics: Trap heat, don’t breathe, get uncomfortably clingy when sweaty
- Nylon/Spandex: Hold moisture against skin, can cause overheating
- Heavy materials: Denim, thick sweatshirts, or anything that restricts your body’s natural cooling
The science here is simple: synthetic materials interfere with your body’s thermoregulation. When you’re sitting in 180°F heat, your body needs to sweat efficiently to cool itself. Synthetic fabrics block this process, making you uncomfortable and potentially leading to overheating.
Critical Safety Warning: Never Wear Metal in a Sauna
This isn’t optional—remove ALL jewelry before entering any sauna:
- Rings, necklaces, earrings: Can reach burning temperature in 15-30 seconds
- Watches and fitness trackers: Metal backs will burn your wrist
- Piercings: Even small studs get dangerously hot
- Hair clips with metal: Switch to plastic or fabric hair ties
- Glasses with metal frames: Leave outside or switch to plastic frames
Here’s what happens: metals like silver and gold are excellent heat conductors. At sauna temperatures (150-190°F), your jewelry heats up fast enough to cause actual burns. Emergency rooms regularly treat jewelry burns from saunas—it’s completely preventable.
Even “heat-resistant” metals like titanium or surgical steel get hot enough to burn. There are no exceptions to this rule.
Gym Sauna Etiquette: Don’t Be That Person
Following proper etiquette makes the experience better for everyone:
The Essential Rules:
- Shower first: Rinse off sweat and deodorant before entering
- Sit on your towel: Never put bare skin on the bench
- Enter and exit quickly: Don’t let the heat escape
- Keep it quiet: Saunas are for relaxation, not loud conversations
- Leave your phone outside: The heat will damage it anyway
- Ask before adjusting anything: Temperature, adding water to rocks, using essential oils
Common Mistakes to Avoid:
- Wearing your sweaty workout clothes straight from the gym floor
- Spreading out and taking up too much bench space
- Exercising or stretching (save it for the yoga studio)
- Bringing in strong fragrances or oils without asking
- Staying too long—15-20 minutes is plenty for most people
Special Considerations for Different Sauna Types
Traditional Saunas
Temperature range: 150-190°F
What to wear: Minimal cotton or towel only
Why: The high ambient heat means less clothing equals more comfort
Infrared Saunas
Temperature range: 120-140°F
What to wear: Can tolerate light clothing better
Why: Infrared heats your body directly, not the air—but minimal clothing still allows better infrared penetration
Steam Rooms
Temperature range: 110-120°F with high humidity What to wear: Swimsuit or moisture-wicking materials Why: The humidity makes everything feel wet, so quick-drying materials help
After Your Sauna Session
What you do after matters too:
- Cool down gradually: Don’t rush to get dressed
- Shower with lukewarm water: Rinse off sweat and toxins
- Hydrate: Drink at least 16 oz of water
- Wait before putting jewelry back on: Metal stays hot for 5-10 minutes
- Change into clean, dry clothes: Don’t put sweaty gym clothes back on
FAQs About Sauna Attire
Q: Can I wear makeup in the sauna? A: Better not to. The heat opens your pores, and makeup can clog them. Plus, it’ll melt and run—not a good look.
Q: What about contact lenses? A: They won’t melt, but they might dry out and become uncomfortable. Consider removing them or bring eye drops.
Q: Can kids wear regular clothes in the sauna? A: Kids should wear minimal, breathable clothing and limit sessions to 10-15 minutes. Their bodies don’t regulate temperature as well as adults.
Q: Do I need special sauna hats? A: Sauna hats (usually wool or felt) protect your head from intense heat. They’re optional but helpful for longer sessions or if you’re heat-sensitive.
Q: What if I have medical devices or implants? A: Check with your doctor first. Some devices can’t handle heat exposure.
The Bottom Line
Sauna attire isn’t complicated once you know the basics. At home, less is more—embrace the traditional approach if you’re comfortable. At the gym, follow the rules and be considerate of others.
Most importantly: always sit on a clean towel, never wear metal, and choose natural, breathable fabrics when you do wear something.
Ready to experience sauna the right way? If you’re considering a home sauna where you can set your own rules, we’d love to help you explore your options. Our team at Sauna Supply Company has been helping Minnesota families find their perfect sauna setup since our roots go back to the founding of Finnleo in 1984.
Give us a call at 612-505-9700 or stop by our Cokato showroom for a free sauna session—you can experience firsthand what proper sauna bathing feels like. We’ll make sure you’re comfortable, answer all your questions, and help you understand why Finns have been doing this for centuries.
Because once you experience a real sauna—wearing the right attire in the right environment—you’ll understand why we’re so passionate about sharing this tradition.