What to wear in a sauna comes down to three things: the facility’s rules, comfort in high heat, and hygiene for everyone sharing the bench. In most US gyms and spas, the safe answer is a simple swimsuit or a cotton towel wrap, a separate towel to sit on and flip-flops for the walk in. Remove jewelry and skip workout synthetics. Our what to wear hub covers more occasion guides.
Quick answer
- A plain swimsuit or cotton towel wrap is standard in US gyms and spas.
- Always sit on your own towel, and shower first.
- Where the sauna sits changes the norm: pool-deck saunas are mixed and swimsuit-only; some locker-room saunas are more relaxed.
- No metal: jewelry, underwire and swimsuit hardware heat up fast.
- Change out of sweaty synthetic gym clothes before you go in.
What to Wear in a Sauna: The Quick Answer
| Setting | What most women wear | Bring |
|---|---|---|
| Sauna on a gym pool deck | Swimsuit (mixed-gender area) | Sitting towel, flip-flops, water |
| Sauna inside a women’s locker room | Towel wrap or swimsuit; some women go towel-only | Two towels, flip-flops |
| Day spa | Towel wrap or swimsuit, robe between rooms | Hair tie, sauna hat if provided |
| Hotel spa | Swimsuit under a robe | Flip-flops, water |
| Steam room | Swimsuit or thin wrap | A dry towel for after |
| Home sauna | Whatever feels comfortable | Towel, water |
Do You Wear Clothes in a Sauna?
It depends on the facility and the culture. US gyms and hotel spas expect a swimsuit or towel; many post a simple rule like “no street clothes, towel required.” Some European-style spas divide areas into “textile” zones (swimwear allowed) and “non-textile” zones (no swimwear, towel only), and a few ask guests not to wear swimsuits because they carry pool chemicals into the heat. Read the posted rules or ask the front desk; each facility’s policy is the final word.
A heads-up for first-timers: in some women’s locker-room saunas, you may see other guests in just a towel or less. Keeping your swimsuit on is always fine.
Best Sauna Outfit Options for Women
- Towel wrap: a large cotton towel that fastens with a snap or hook-and-loop closure. Breathable, absorbent and easy to remove for showering; choose one that reaches the knee and closes securely.
- Swimsuit: a plain one-piece without metal rings, underwire or decorative hardware. Heat and sweat wear down stretch fabric, so an older suit is smart.
- Loose cotton or linen: a cotton tank and soft shorts where clothing is allowed, mainly home and infrared saunas. Many shared saunas don’t allow street clothes.
Best and Worst Fabrics for the Sauna
| Fabric | Sauna rating | Why |
|---|---|---|
| Cotton terry | Excellent | Absorbent, soft, washes hot |
| Linen | Excellent | Very breathable, dries quickly |
| Turkish cotton (flat weave) | Excellent | Light, quick-drying, packs small |
| Bamboo-based viscose | Good | Soft and absorbent; check care labels |
| Wool felt | Hats only | Insulates your head from rising heat |
| Polyester, nylon, spandex-heavy activewear | Poor | Traps heat and sweat, holds odor, can degrade |
| Denim, fleece | Avoid | Far too thick |
What to Wear in a Gym Sauna
Not the leggings and sports bra you just trained in. Sweaty synthetic gym kit carries bacteria and odor into a small shared room, and it’s uncomfortable in high heat. Some gym-goers walk in fully dressed, even in shoes with phones; don’t follow their lead.
- Cool down for a few minutes after your workout.
- Shower and change into a swimsuit or towel wrap.
- Bring two towels (one to sit on, one to dry with), flip-flops and water.
- Leave your phone, jewelry and earbuds in your locker.
- Keep the session short, then shower and change into dry clothes.
Coming from a heated class? See what to wear to hot yoga. For outdoor exercise layers, see what to wear hiking.
Steam Room vs. Sauna
| Traditional sauna | Steam room | |
|---|---|---|
| Heat type | Dry heat, often 150–195 °F | Moist heat, often around 110–120 °F |
| Your towel | Stays fairly dry | Soaks and gets heavy quickly |
| Best outfit | Swimsuit or cotton towel wrap | Swimsuit or thin wrap; less fabric is better |
| Hair | Sauna hat or loose bun | Hair tie; expect frizz |
| After | Dry robe or towel | A fresh dry towel kept outside |
Infrared saunas run at lower air temperatures; most people wear the same swimsuit or wrap, or loose cotton. Check studio rules first.
What Not to Wear in a Sauna
Do
- Wear a clean swimsuit or cotton wrap.
- Sit on your own towel; wear flip-flops.
- Tie hair up or wear a felt sauna hat.
- Wash off makeup, perfume and heavy lotion first.
Don’t
- Wear metal jewelry, a smartwatch or an underwire top.
- Bring sweaty workout clothes inside.
- Wear tight synthetics or denim.
- Use your phone in a shared sauna.
If you can’t remove a ring, a silicone band is the safer swap. Makeup melts and transfers to shared benches and towels, and perfume is overwhelming in a small hot room. Glasses fog and metal frames warm up, so many people leave them outside.
Sauna Packing Checklist
| Item | Why |
|---|---|
| Swimsuit or towel wrap | Coverage that fits most rules |
| Two towels | One to sit on, one to dry off; never mix them |
| Flip-flops or slides | Hygiene on wet floors; leave street shoes outside |
| Sauna hat | Keeps your head comfortable in rising heat |
| Water bottle | Hydration before and after (no glass) |
| Hair tie and wide-tooth comb | Hair off your neck; easy detangling |
| Gentle cleanser | Removes makeup first |
| Robe | Warmth and coverage between rooms |
| Mesh or waterproof bag | Carries damp items home |
Wash towels and wraps after every use; rinse swimsuits in cool water and lay flat to dry. See how to wash clothes for fabric-by-fabric care.
Sauna Etiquette and Safety Basics
- Hygiene: shower before and after; sit on a towel.
- Phones: heat damages them, and cameras make others uncomfortable.
- Doors: enter and leave quickly and quietly to keep heat in.
- Time: follow posted limits; leave if you feel dizzy or unwell. Avoid alcohol.
- New tattoo? Skip saunas until it’s healed; see what to wear to a tattoo appointment for aftercare clothing.
This guide covers clothing and etiquette only and is not medical advice. If you’re pregnant, have a heart condition or take medication, ask a health care professional before using a sauna.
Frequently asked questions
Do you wear clothes in the sauna?
In most US gyms and hotel spas, a swimsuit or towel wrap; street clothes and workout gear are usually discouraged. Some spas have non-textile zones with different rules, so check first.
Should I wear anything under my towel?
In most US public saunas, a swimsuit under your towel keeps you covered while you move around. In a women’s locker-room sauna, some go towel-only; either is fine where allowed.
What should a woman wear in a gym sauna?
A simple one-piece swimsuit or cotton towel wrap, after changing out of sweaty gym clothes, plus a sitting towel, flip-flops and water.
Should I wear makeup in the sauna?
No. Heat melts makeup, and it transfers to towels and shared benches. Cleanse first and reapply after you cool down.
Does wearing extra layers in a sauna make it more effective?
Extra layers mainly increase fluid loss and the risk of overheating; the fluid returns when you rehydrate. Stick with a swimsuit or breathable wrap.
