Laundry care symbols, explained in plain English

Care labels look like a code because they are one — an international system designed to work without language. Once you know the logic behind it, most of it reads at a glance, and the ten seconds it takes to check a label is the cheapest insurance available against ruining something you like.

The shape system, which makes the rest easy

The single most useful thing to know is that the shape tells you the category before you have read anything else. There are five, and they are always the same.

ShapeCategory
A washtub — a bucket shape with a wavy line across the topWashing
A triangleBleaching
A squareDrying
An ironIroning
A circleProfessional textile care

Two modifiers apply across all five families and mean the same thing every time. A cross through a symbol means do not do this. A bar underneath means be gentler than normal, and two bars mean gentler still.

That is most of the system. Dots inside a symbol almost always indicate temperature, counting up from one for the coolest. Once you have those three rules — shape is category, cross is no, bars and dots modify — you can read a label you have never seen before.

Where to find the label

On shirts and dresses it is usually in the side seam a few inches up from the hem, or at the neck. On trousers it is in the waistband. On bedding and towels it is in a corner seam. On a comforter or duvet it is often in a corner and easy to miss.

If the label has been cut out because it irritated, check whether the information was printed directly onto the garment instead — many manufacturers now do this on the inside of the neck or waistband. Failing that, the brand and product name will usually turn up the care instructions online.

Washing: the tub

The washtub is the symbol you will use most, and it carries three separate pieces of information at once: whether the item can be machine washed at all, how hot, and how vigorously.

Temperature

Inside the tub you will find either dots or a number. They mean the same thing and the number is simply more precise.

Inside the tubMeansIn practice
One dot30°CCold
Two dots40°CWarm — the most common setting
Three dots50°CWarm to hot
Four dots60°CHot
Five dots70°CVery hot
Six dots95°CBoil wash — rare outside heavy cottons
A numberThat temperature in CelsiusSame scale, stated directly

A temperature on a label is a maximum, not an instruction. Washing cooler than stated is almost always safe; washing hotter is what causes shrinkage and colour loss.

Agitation

No bar under the tub: a normal cycle. Full agitation and a normal spin.

One bar: permanent press or synthetics. Reduced agitation and a slower spin, which is what stops synthetics creasing.

Two bars: delicate or gentle. Minimal agitation, short cycle, low spin.

A hand in the tub: hand wash only. Cool water, no agitation beyond gentle movement, and do not wring.

A cross through the tub: do not wash in water at all. Check the circle symbol on the same label.

The bars are the most frequently ignored part of a label and one of the most consequential. A wool jumper washed on a normal cycle at the right temperature will still felt, because it is the agitation rather than the heat that does it.

Bleaching: the triangle

The smallest family and the easiest to read. Three variants, and only three.

SymbolMeans
An empty triangleAny bleach may be used, including chlorine
A triangle with two diagonal lines insideNon-chlorine bleach only — oxygen-based
A triangle with a cross through itDo not bleach

The middle one causes most of the confusion. Two diagonal stripes inside the triangle do not mean bleach is prohibited; they mean chlorine bleach is prohibited and an oxygen-based product is acceptable. Oxygen bleach is the one sold as a laundry booster or a colour-safe brightener.

Worth knowing regardless of the label: chlorine bleach weakens cotton fibres with repeated use, so a towel bleached every wash wears out noticeably faster. On anything coloured or synthetic it is a poor choice even where the label permits it.

Drying: the square

The largest family, and the one where the most damage gets done. A square always means drying; what is inside it tells you how.

Tumble drying

A circle inside the square means the item may be tumble dried. Dots inside that circle give the heat setting, on the same counting-up principle as the tub.

Inside the squareMeans
Circle with one dotTumble dry, low heat
Circle with two dotsTumble dry, medium heat
Circle with three dotsTumble dry, high heat
Circle filled in solidTumble dry, no heat — air fluff
Circle with a bar underneathPermanent press setting
Circle with two barsGentle or delicate setting
Circle with a cross through the squareDo not tumble dry

Air drying

Lines inside the square, rather than a circle, indicate air drying and the orientation tells you how.

One horizontal line: dry flat. For knitwear and anything that would stretch under its own weight when wet.

One vertical line: line dry — hang it up.

Three vertical lines: drip dry — hang it wet without wringing or spinning first.

A diagonal line across the top-left corner: dry in the shade, away from direct sun. Usually on darks that would fade.

The flat-dry symbol is the one most worth respecting. A wet wool or heavy cotton knit hung on a line stretches permanently, and no amount of washing afterwards brings the shape back.

Ironing: the iron

An iron shape, with dots for temperature.

SymbolMeansTypical fabrics
Iron with one dotLow, around 110°CSynthetics, acrylic, nylon
Iron with two dotsMedium, around 150°CWool, polyester blends
Iron with three dotsHigh, around 200°CCotton, linen
Iron with a cross through itDo not iron
Iron with crossed lines beneathDo not steamSome silks and coated fabrics

Two practical notes the symbols do not tell you. Ironing on the reverse side protects prints, dark colours and anything with a sheen, and it is worth doing by default. And a fabric that is slightly damp irons far more easily than a bone-dry one — which is why steam exists and why a dry iron on dry linen is such hard work.

The circle

A circle on its own, without a square around it, is the professional textile care symbol. It indicates that the garment is intended to be cleaned by a specialist process rather than washed at home, and a letter inside the circle tells that specialist which process to use.

A cross through the circle means the item should not be professionally cleaned by that route. A bar underneath means a mild version of the process.

For domestic purposes the practical reading is simpler than the detail suggests: a circle on the label, particularly alongside a crossed-out washtub, means this is not a garment to put in a washing machine. What to do with it instead is a decision for the owner and whoever they take it to.

US and international labels are not identical

If a label looks unfamiliar, this is usually why. The symbol system is broadly international but the American convention differs from the European one in a few visible ways.

American labels often use words as well as symbols, or instead of them. Federal rules require care instructions to be given, and plain English satisfies that, so plenty of US garments simply say “machine wash cold, tumble dry low.”

Temperature is shown differently. European labels use dots or Celsius numbers; American ones frequently use words — cold, warm, hot — or dots on the same scale.

The drying family varies most. The square-with-circle convention is used in both, but American labels are more likely to spell out “tumble dry low” than to rely on dots.

Imported clothing carries its origin’s convention, which is why two garments in the same wardrobe can label the same instruction two different ways.

The shapes mean the same thing in every system, which is the point of using shapes. If you can read the five families you can read any label regardless of where it was printed.

When there is no label at all

Common, particularly on anything a few years old or on items where the label was cut out. Judge by fabric instead, and err gentle.

If it feels like…Treat asMethod
Cotton — matte, sturdy, creases easilyCottonWarm wash, normal cycle, medium dryer
Wool — slightly springy, warm to the touchWoolCold, gentle or hand wash, dry flat
Synthetic — smooth, slick, does not crease muchPolyester or nylonWarm, permanent press, low dryer heat
Silk — very smooth, cool, drapes heavilySilkDo not machine wash without testing
Linen — textured, crisp, creases sharplyLinenWarm, normal, and iron damp
Stretchy — springs back, has giveElastane blendCold, gentle, and never a hot dryer

Three fallback rules cover almost everything. Cold water is safe for nearly all fabrics and never causes shrinkage. A gentle cycle is safe for everything and only costs you a slightly less thorough wash. And low dryer heat, or air drying, prevents the great majority of unlabelled-garment disasters, because heat rather than water is what does most permanent damage.

If an item is genuinely valuable and you have no label, wash a hidden section by hand first — an inside seam allowance or a hem — and see what happens before committing the whole garment.

Labels that seem wrong

Occasionally a label says something that appears unnecessarily cautious, and sometimes it is.

Manufacturers label conservatively because they carry the liability if a garment is damaged following their instructions. A cotton shirt marked cold wash and line dry will very often survive a warm wash and a low tumble perfectly well. That is a judgement the owner is entitled to make, with two exceptions worth respecting every time.

The first is anything structured — tailoring, a lined jacket, a padded coat. The interfacing and lining shrink at different rates from the outer fabric, and once that has happened the garment does not sit right and cannot be recovered. The second is anything where the label prohibits rather than restricts: a crossed-out tub, a crossed-out iron, a do-not-tumble-dry. Those are not conservatism, they are a warning about a specific failure.

Where a label contradicts itself — and it happens — follow the most cautious instruction on it.

Labels on bedding, towels and household textiles

Household items are labelled to the same system but the instructions tend to be broader, and a few conventions are worth knowing because they differ from clothing.

Towels and cotton bedding are usually the most permissive things you own — hot wash, high dryer heat, no restriction on bleach. That does not mean you should use all of it. A towel washed hot every time with chlorine bleach is following its label exactly and will still wear out considerably faster than one washed warm without.

Comforters and duvets are the opposite: the label is often the only place the fill type is stated, and the fill governs the method far more than the shell fabric does. If a duvet label says machine washable, check what size machine it assumes — some specify a minimum drum capacity, which is a useful indication that the manufacturer knows a domestic machine may not manage it.

Curtains, cushion covers and loose covers frequently carry a shrinkage warning rather than a prohibition, and it is worth reading closely. A cover that shrinks two per cent no longer fits the cushion, and there is no recovering from that.

Multi-part and mixed-fibre items

Two situations where a single label is not the whole story.

A garment with a removable liner — a coat with a zip-out lining, a jacket with a detachable hood — often has two labels with different instructions, and they may genuinely conflict. Separate the parts and follow each label for its own piece. If the liner is not removable and the two instructions conflict, the more cautious one governs the whole garment.

Mixed-fibre fabrics are labelled for the most delicate fibre present, not the dominant one. A shirt that is ninety per cent cotton and ten per cent elastane will be labelled for the elastane — cool wash, low heat — because that is the component heat destroys. The label is not being over-cautious about the cotton; it is being correct about the ten per cent.

This is also why two apparently identical cotton shirts can carry different instructions. Check both rather than assuming.

What a care label does not tell you

The system covers process, not judgement, and there are useful things it is silent on.

  • How often to wash it. No symbol exists for that, and over-washing wears clothes out faster than wearing them does.
  • How to treat a stain. The label tells you the wash temperature, not that hot water sets protein stains permanently.
  • How full to load the machine. A garment washed correctly in an overloaded drum still comes out badly washed.
  • How much detergent to use. The commonest cause of stiff clothes and towels that smell, and no label addresses it.
  • How to store it. Knitwear folded rather than hung, nothing put away damp — both matter more than most wash settings.
  • Whether the item is worth saving. A label on a garment that has already lost its shape is instructions for maintaining a lost cause.

The label is a floor rather than a complete guide. Following it prevents damage; the rest of what makes clothes last is habit.

The eight symbols that matter most

If you are not going to learn the whole system, learn these. They prevent nearly every avoidable laundry accident.

SymbolWhy it matters
Crossed-out washtubDo not put it in water. The most consequential single symbol
Hand in the tubHand wash only — a machine will damage it even on gentle
Two bars under the tubDelicate. Ignoring this is what felts wool
Crossed-out tumble dryHeat will shrink, melt or distort it
One dot in the dryer circleLow heat only
Square with a horizontal lineDry flat, or it will stretch out of shape
Crossed-out ironHeat will mark or melt the surface
A circleNot a home-laundry item

Why we read them here

Every item that comes in for pressing gets its label checked before anything touches it, and the same applies to anything unusual in a wash and fold order. It takes a few seconds per item and it is the difference between a service that returns your clothes and one that returns your clothes intact.

If something cannot be pressed or washed the way you were expecting, we tell you at the counter rather than finding out afterwards. Our covers what we take, and the wash and fold page covers the drop-off service — and if you are ever unsure what a label is telling you, bring the item in and ask.

Not sure about a label?

6043 W Addison St, open 6:30am–10pm daily. Bring it in and we’ll check it with you.

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