Garment Care Label Symbols: The Complete Guide

The five symbol families and how to read them

Care labels worldwide are built from five symbols, conventionally printed in a fixed order: a wash tub for washing, a triangle for bleaching, a square for drying, an iron for ironing, and a circle for professional cleaning. Each base symbol is modified by numbers, dots, lines and crosses. A cross through any symbol means the process is prohibited; that is the single most important convention to know.

Severity modifiers are consistent across families. Dots indicate temperature: one dot is low, two is medium, three is high, so an iron with two dots means iron at medium heat, and a tumble-dry square with one dot means dry at low temperature. Bars under a symbol call for a gentler process: one bar under the wash tub means a mild or synthetics cycle, two bars mean very mild, typically a wool or delicate cycle.

Once those rules are internalised, any label can be read without a chart. A tub showing 30 with one bar, a crossed triangle, a crossed tumble square, a one-dot iron and a crossed circle translates as: wash at 30C on a gentle cycle, do not bleach, do not tumble dry, cool iron, do not dry clean.

Washing symbols: tubs, temperatures and hand wash

The wash tub covers machine and hand washing. Inside the tub, a number states the maximum water temperature in Celsius, commonly 30, 40, 60 or 95; the US system sometimes uses dots instead, one dot for cold through six dots for very hot. Underlining bars reduce mechanical action: no bar is a normal cotton cycle, one bar a synthetics or mild cycle, two bars a delicate or wool cycle.

A hand inside the tub means hand wash only, generally understood as a maximum of 40C with gentle handling and no wringing. A crossed tub means do not wash at all, which should only ever appear alongside a professional cleaning symbol, otherwise the customer has no permitted cleaning route.

For brands, the wash symbol is a positioning decision as well as a technical one. Everyday cotton casualwear is expected to carry 30C or 40C machine wash; labelling a basic tee hand wash only to be safe reads as poor quality to customers and violates the US requirement that instructions have a reasonable basis reflecting a suitable care method. Test the fabric, then label the most convenient care it genuinely tolerates.

Bleaching symbols: the triangle

The empty triangle means any bleach is allowed, including chlorine bleach. A triangle with two diagonal lines inside permits only oxygen-based, non-chlorine bleach, which is the most common instruction on coloured garments since oxygen bleach lifts stains without stripping most dyes. A solid crossed triangle prohibits all bleach.

The older US convention of a triangle with the letters CL, for chlorine allowed, still appears on legacy labels but has largely converged on the international shapes. When wording is used instead of symbols, US rules require a bleach warning whenever some bleaches would harm the garment, typically phrased as only non-chlorine bleach when needed.

The commercial logic: whites in stable cellulose fibres can often carry the open or oxygen-bleach triangle, everything dyed, printed or containing elastane should carry non-chlorine or no bleach, because chlorine attacks elastane and many reactive dyes. When in doubt, the crossed triangle is the safe default and costs nothing in customer convenience.

Drying symbols: squares, circles and lines

Tumble drying is a circle inside a square. Dots set the temperature: one dot low, two dots normal, and a crossed version prohibits tumble drying entirely. Tumble prohibition is the most frequently needed drying instruction, since heat is the main cause of shrinkage and elastane degradation in casualwear.

Natural drying instructions use lines inside the plain square: a curved line at the top means hang to dry on a line, one horizontal line in the middle means dry flat, which matters for heavy knitwear that would stretch on a hanger, and vertical lines mean drip dry without wringing. Diagonal lines in the top corner add dry in the shade, used for colours prone to light fading.

For knits and anything with elastane, the practical combination is crossed tumble square plus dry flat. For woven cottons that have been properly preshrunk, low tumble is usually defensible and is what most customers will do anyway, so it is worth wash-testing for it rather than banning it reflexively.

Ironing and professional care symbols

The iron symbol carries one to three dots: one dot up to about 110C for synthetics and delicate fibres, two dots up to about 150C for wool, polyester blends and viscose, three dots up to about 200C for cotton and linen. A crossed iron means do not iron, common on garments with heat-sensitive prints, coatings or laminated details; a note of no steam can be indicated by crossing the steam variant where used.

The circle covers professional textile care. A letter P inside the circle permits professional dry cleaning in perchloroethylene and hydrocarbon solvents; F restricts cleaning to hydrocarbon solvents only; W indicates professional wet cleaning. A bar under the circle asks the cleaner for a mild process. A crossed circle means do not dry clean, important for garments with prints, beads or membranes that solvents would damage.

Most casual brands only ever need two decisions here: the iron dot count that matches the fibre and any prints, remembering that direct high heat destroys plastisol and transfer prints, so a one-dot iron or an inside-out ironing note is common on printed tees; and whether to permit dry cleaning at all, which for washable casualwear is usually irrelevant and can be crossed out without customer impact.

ISO versus US systems, and what brands must actually do

Europe and the UK follow the ISO 3758 symbol set, associated with the GINETEX organisation, whose symbols are trademark-protected in a number of countries; brands selling at scale in those markets sometimes need a licence to print them, which is worth verifying for your target countries. The US Care Labeling Rule accepts either English wording or the ASTM symbol set, which mirrors the same five families with minor stylistic differences and dot-based wash temperatures.

Japan adopted the ISO-aligned symbols in 2016, and most other markets accept the international set, so a single ISO-style symbol strip plus a short English text line satisfies the widest range of markets with one label. The order convention, wash, bleach, dry, iron, professional care, should be kept even where not strictly enforced, because sorters and customers read labels by position.

The process for a brand is simple and worth writing down: wash-test the actual bulk fabric, or ask the factory or a lab such as those operating in Istanbul's textile testing sector to do so; choose the mildest convenient care the garment provably survives; render it in symbols plus optional wording; and put the final artwork in the tech pack. Keep the test report, since it is your reasonable basis if instructions are ever challenged, and re-test when the fabric or print method changes.

• Cross through a symbol always means the process is forbidden
• Dots always mean temperature: more dots, more heat
• Bars under a symbol always mean a gentler process
• Order on the label: wash, bleach, dry, iron, professional care
• Instructions must be backed by wash tests on the bulk fabric