Sauna hat benefits

Why wear a hat in the sauna?

Quick answer

Heat rises, so the air near a sauna ceiling is the hottest in the room, and your head sits right in it. A thick wool sauna hat adds a layer between your head and that air, so your head feels cooler, your hair stays covered, and the whole session feels more comfortable.

How hot it getsThe benefitsMerino vs cottonThis vs thatQuestions
Man relaxing in a timber sauna wearing a merino wool sauna hat
How hot it gets

Heat rises. Tap the room.

Temperatures in a sauna change a lot from floor to ceiling. Tap each level to see where your head ends up.

80–100°C

Head height, upper bench

Sitting on the top bench of a traditional sauna puts your head in some of the hottest air in the room. This is the layer a sauna hat is made for.

Hottest airWhere your head sits

Typical ranges for a traditional Finnish-style sauna. Every sauna is different; infrared saunas run cooler, usually 45–65°C.

The benefits

Six reasons regulars wear one.

Tap a card to open it.

Material matters

Merino vs cotton vs synthetic.

Not all sauna hats are equal. Here is how the three common materials compare in the heat, side by side.

Merino wool

Insulates, breathes and handles moisture. Soft on the skin.

Cotton

Soft but thin. Gets heavy and loses its shape once damp.

Synthetic

Tends to trap moisture and does not breathe like wool.

A general comparison of typical materials, for guidance only. CALOR is felted from approx. 3mm of 100% New Zealand merino.

This vs that

Not all sauna hats are made equal.

Most sauna hats on the market are thin, synthetic and made to a price. Here is the difference you can see and feel.

The typical sauna hat
  • Thin synthetic or blended felt
  • Floppy cone with a loop sewn on top
  • Tends to hold sweat and odour
  • Can lose its shape quickly
  • Limited, dated colours
CALOR merino wool sauna hat
CALOR
  • Approx. 3mm, 100% New Zealand merino felt
  • Soft bucket shape, finished by hand
  • Breathes and handles moisture, as wool does
  • Dense felt, made to hold its shape
  • Four colours you would actually wear
Shop the hat →
Made for you

I have… will it suit me?

Long hair

Tuck it up, keep it covered.

Questions people ask

Sauna hat questions, answered.

BenefitsWhy should you wear a hat in a sauna?
Heat rises, so the air near the ceiling is the hottest in a sauna and your head sits right in it. A thick wool hat adds a layer between your head and that air, so your head feels cooler and your hair stays covered.
BenefitsDo sauna hats actually work?
Yes, for comfort. A dense wool hat slows heat reaching your head and keeps hot, dry air off your hair. Most people notice their head feels cooler and the session feels more comfortable.
BenefitsAre sauna hats good for your hair?
A sauna hat keeps direct heat and dry air off your hair, which helps it feel less dry and frizzy after a session. It's especially popular with long or coloured hair.
UseShould I wet my sauna hat first?
You can wear it dry, or dampen it with cool water and wring it out before going in for an extra cooling feel. Both work.
UseCan you wear a sauna hat in an infrared sauna?
Yes. Infrared saunas run cooler, usually 45 to 65°C, but a wool hat still keeps your head and hair comfortable.
UseCan I wear it in a steam room?
Yes. The wool will get damp in steam, so rinse it and hang it to air dry afterwards.
UseHow long should I stay in the sauna?
Most people do rounds of around 8 to 15 minutes, then cool down and rest before going again. Start shorter if you're new, and always listen to your body.
MaterialsWhat is the best material for a sauna hat?
Thick, dense wool felt is the best all-round choice: wool insulates well, breathes and copes with heat and moisture. Merino is a premium wool that feels soft against the skin.
MaterialsIs merino better than regular wool for a sauna hat?
Merino fibres are finer, so merino felt feels softer and smoother on the skin while keeping wool's insulation and moisture handling.
MaterialsHow thick should a sauna hat be?
Look for dense felt of around 3mm. Thinner felt gives less insulation and can lose its shape. CALOR is felted from approx. 3mm of 100% New Zealand merino.
CareHow do you wash a wool sauna hat?
Rinse it in cool water with a little wool-safe wash, gently squeeze out the water, reshape it and let it air dry. Avoid the washing machine, tumble dryer and hot water.
CareWill my sauna hat shrink?
Wool felt can shrink with hot water, agitation or a dryer. Rinse in cool water and air dry and it will keep its shape.
BuyingWhat size sauna hat should I get?
CALOR is one size and fits most adults, men and women. The wool relaxes slightly with wear for a comfortable fit.
BuyingIs a sauna hat a good gift?
Yes. It's useful, personal and made for a ritual people love. Choose from four colours, and you can add a gift note at checkout with prices left off the packing slip.

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CALOR merino sauna hat in beige
CALOR merino sauna hat

Feel the difference next round.

Hand-felted from 3mm of 100% New Zealand merino. Four colours, one size. Free shipping on 2+ hats.

Shop the hat — $39.99