How to Clean a Straw Hat (Step-by-Step Guide)

A well-made straw hat can last for years, even decades, if you treat it right. But straw is a natural material, and natural materials need a little attention. Sun, sweat, humidity, and travel all leave their mark. Knowing how to clean a straw hat properly keeps it looking beautiful and extends its life considerably.

At Charlee Girl, we make our straw sun hats in two weave types: Hollow Mat and Rush & Mat. They share the same signature shape and wide protective brim, but they have different structural properties, which means the cleaning approach differs slightly between the two. We'll cover both.

What You'll Need

You don't need anything complicated. Most of this is already in your kitchen or bathroom.

• A soft-bristled brush (a clean toothbrush or nail brush works well)
• A soft cloth or sponge
• Mild dish soap or gentle laundry detergent (no bleach or harsh brighteners)
• A small bowl of cool water
• A dry towel
• Optional: a hat form, crumpled paper, or a rolled towel for shaping while it dries

What you don't need: the washing machine, the dryer, or any chemical cleaners. Straw hats don't belong anywhere near any of those.

How to Clean a Straw Hat: Step by Step

Step 1: Dry brush first

Before any water touches your hat, remove loose dust and debris with a soft dry brush. Work in gentle strokes moving from the crown out toward the brim. If you don't have a hat brush, a clean dry cloth works fine. This keeps dry particles from turning into mud once you introduce moisture.

For small marks or scuffs caught in the weave that don't brush off dry, try a white gum eraser or a small piece of double-sided tape pressed gently onto the mark and lifted straight off. Both work well on straw without introducing moisture.

Step 2: Spot clean with mild soap and water

Mix a small amount of mild dish soap with cool water. Dip a soft cloth or sponge into the solution and wring it out well so it is damp, not dripping. Before applying the solution to any visible area, test it on a hidden spot first, such as the underside of the brim, to make sure it doesn't affect the finish or color. Then gently wipe the straw surface in the direction of the weave. Avoid scrubbing hard or using circular motions on tight weave sections, as this can catch individual strands and fray them.

Work on one section at a time. Rinse your cloth frequently and change the water if it gets murky. When you're done, go over the hat one more time with a clean cloth dampened with plain water to remove any soap residue.

For stubborn stains on the straw body that don't respond to soap and water, mix equal parts hydrogen peroxide and warm water and apply lightly with a soft brush, working in small sections. Wipe with plain water afterward to remove any residue. Test a hidden spot first, as hydrogen peroxide can lighten straw. Use it sparingly and only when needed.

Step 3: Treat sweat stains on the interior band

The interior band is usually the first place visible wear shows up. Sweat and natural oils build up along the inside of the crown over time, leaving a yellowish or brown ring. This is normal, and it is fixable.

For fresh sweat marks, start dry. Dust talc or cornstarch directly onto the stain, let it sit for a few hours to absorb the oils, then brush it off completely before introducing any liquid. This step alone often lifts a fresh stain without any moisture at all.

For set-in stains, mix a small amount of mild soap, or make a paste with baking soda and water. Apply it directly to the band with a soft brush or cloth and work it in gently. Let it sit for a minute or two, then wipe clean with a damp cloth. For stubborn stains, a second pass usually handles it.

Our hats have an elastic interior headband and a moisture-wicking sweatband sewn into the crown. Both can be spot cleaned this way. Avoid saturating them, as water can seep into the base of the straw crown if the interior gets too wet.

Step 4: Clean the fabric under-brim

This is what sets a Charlee Girl hat apart from most straw hats on the market. Our vibrant patterned under-brim is fabric, not straw, and it needs slightly different treatment.

Use the same mild soap and water solution, but go lighter here. The fabric can hold onto soap residue if you aren't careful. Use a lightly dampened cloth (not a brush) and wipe in one direction. Avoid scrubbing in circles. Rinse the cloth and go over the fabric again with plain water to lift any soap.

For food or drink stains on the under-brim fabric, treat them promptly. Fresh stains lift much more easily than set ones. Blot first, don't rub, then apply a small amount of the soap solution and blot again.

Hollow Mat vs. Rush & Mat: Does the Cleaning Method Differ?

A little, yes. Both weave types respond well to the same basic process above, but their structural differences are worth understanding before you start.

Hollow Mat

Hollow Mat has a lighter, airier weave. It is more flexible and slightly softer to the touch. Because the individual strands are finer and more loosely structured, Hollow Mat is more susceptible to distortion when wet. The key rule with Hollow Mat: skip the soap and use a plain damp cloth only. Wring your cloth out thoroughly so it is barely damp before touching the hat. The lighter structure means soap residue is harder to lift out, and extra moisture risks distorting the weave. After cleaning, reshape the brim gently with your hands before setting it to dry.

Rush & Mat

Rush & Mat has a tighter, more structured weave. It holds its shape better when damp and tolerates a bit more contact during cleaning. You can be slightly more thorough when spot cleaning a Rush & Mat hat without worrying as much about distortion. That said, the same principles apply: never soak it, always work in the direction of the weave, and let it air dry completely before storing.

Both weave types are hand-woven from 100% natural straw. Neither belongs in a washing machine, and neither should be submerged in water.

How to Dry a Straw Hat

This is where most straw hat care mistakes happen. Get the drying step right and your hat will hold its shape for years.

• Never put it in the dryer. Heat warps straw and can shrink the interior band. Not negotiable.
• Never dry it in direct sunlight. Prolonged direct sun during drying bleaches and dries out the straw, making it brittle over time. A shaded, well-ventilated spot is ideal.
• Shape it before it dries. Straw is most pliable when slightly damp. This is your window to correct any brim curl or crown dents. Reshape gently with your hands, then leave it to dry in that position.
• Support the crown while it dries. Place your hat crown-down on a rolled towel, crumpled paper, or a hat stand so the brim dries flat. This prevents flat spots on the crown and keeps the brim from dipping under its own weight.
• Give it a full 24 hours. Don't rush it. A completely dry hat is a happy hat.

How to Store a Straw Hat

Clean, dry, and properly stored, a straw sun hat holds up beautifully between seasons.

• Store in a cool, dry place. Humidity is the enemy of straw. A closet shelf works well. Avoid basements, attics, or anywhere with fluctuating moisture.
• Don't stack things on top of it. Straw compresses under pressure. Give your hat its own space on a shelf, or hang it on a hook by the drawstring.
• Use a hat box for long-term storage. If you're putting your hat away for a full season, a breathable hat box or storage bag keeps dust off and protects the brim from warping.
• Reshape before storing. If the brim has any slight wave or the crown has a dent, reshape gently and let the hat sit in that form for a few hours before putting it away.

A question we hear often: can you pack a straw hat in a suitcase? With care, yes. Our hats are designed to pack flat. Place the hat brim-side down in your luggage and avoid stacking heavy items on top. When you arrive, minor creases usually relax on their own within a few hours. A light steam from a garment steamer held about six inches away can help coax a stubborn crease back out. For a stubbornly curled brim edge, place a lightly dampened cloth over the brim and press gently with a warm iron on medium-low heat. Let it cool flat before moving it.

Straw Hat Care: Common Questions

Can you wash a straw hat in the washing machine?

No. Machine washing destroys the structure of a hand-woven straw hat. The agitation, heat, and full saturation will warp the brim, loosen the weave, and permanently distort the shape. Spot clean by hand only.

How do you get sweat stains out of a straw hat?

A paste of baking soda and water applied with a soft brush, or a mild dish soap solution worked into the interior band with a damp cloth, handles most sweat stains. Let the solution sit for a minute or two before wiping clean with a damp cloth. Repeat for set-in stains. The sooner you treat them, the easier they come out.

How often should you clean a straw hat?

Spot clean as needed when you notice visible dirt or staining. A fuller clean (exterior wipe-down plus interior band treatment) once or twice a season keeps most hats in great shape. The more you wear it in heat and sun, the more it benefits from regular attention.

Can you use bleach on a straw hat?

No. Bleach weakens the straw fibers and strips natural color. It causes the straw to become brittle and break down over time. Use only mild soap and water.

What is the difference between Hollow Mat and Rush & Mat straw?

Hollow Mat has a lighter, airier weave that is flexible and soft to the touch. Rush & Mat has a tighter, more structured weave with a firmer hand feel and a sculpted shape that holds up well in wind and strong sun. Both are made from 100% natural straw and are available in every Charlee Girl hat style. If you prefer a relaxed, breathable feel, Hollow Mat is your weave. If you prefer a firm, polished shape with maximum structure, Rush & Mat is the one.

Can you steam a straw hat to reshape it?

Yes, carefully. Hold a garment steamer or the steam setting of an iron about six inches away from the straw. Never let the steam head touch the hat directly. Once the straw is warm and slightly pliable, reshape with your hands and hold until it cools. This works well for brim curl and minor crown dents. Let it cool and dry completely in the new shape before wearing or storing.

Your Hat Is Worth Taking Care Of

A straw hat is meant to be worn, lived in, and taken everywhere. Salt air, mountain sun, market crowds and dusty trails. A little care keeps it looking its best through all of it.

If you're looking for a wide-brim straw sun hat built to go the distance, with bold patterned under-brims and a shape designed to hold up wear after wear, browse our straw sun hat collection. Every hat comes in both Hollow Mat and Rush & Mat weave so you can choose the feel that fits your life best.