
How to wash a hat
Hats soak up sweat and skin oil, but their shape relies on cardboard or a stiff band that water can ruin. The method depends on the hat: a cotton cap by hand, felt only dry, a knit like a sweater.
Always follow your garment's own label – it beats any general advice.
Cotton baseball cap
- Check the label and the brim: older caps have a cardboard brim – don't soak it, spot-clean only.
- In a basin of lukewarm water with a drop of washing-up liquid, brush the sweatband and marks with a soft brush.
- Rinse, blot with a towel and dry over an upturned bowl or a rolled towel so it keeps its shape.
Felt and straw hats
- No water. Brush dust off with a soft brush against the nap; lift marks with a rubber or a small brush.
- Sprinkle grease marks with cornflour, leave a few hours and brush it out.
Knitted beanie
- Wash it like a sweater: by hand or on the wool cycle at 30 °C, dry flat.
Common mistakes
- The dishwasher – the heat and detergent warp the brim and fade the colour.
- The dryer or a radiator – the sweatband shrinks.
Frequently asked
Pick all its symbols and get the washer, dryer and iron settings in one place.
Decode the labelPrintable symbol chart →01Can I put a cap in the washing machine?
Only an all-fabric cap with a plastic brim, in a cap frame or mesh bag, cold water, gentle cycle. By hand is safest.
02How do I get sweat stains out of a hat?
Brush the sweatband with washing-up liquid; on white cotton a paste of baking soda and water for 15 minutes helps.

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