A great find can be undone by one ambitious wash. A soft wool jumper can felt, a lined vintage dress can lose its shape, and a perfectly good shirt can shrink simply because the label was treated as an afterthought.
Knowing how to read clothing labels and care labels helps you understand what a garment is made from, how it was intended to be cared for, and what practical limits you should respect before washing, drying or ironing it.
For new, pre-owned and vintage pieces alike, the small label inside a garment can tell a more useful story than the size on the hanger. Read it before you buy where possible, and again before its first clean.
What information is usually on a clothing label?
Depending on the garment and manufacturer, a clothing label may include:
- fibre composition;
- care symbols;
- written care instructions;
- size;
- country of manufacture;
- manufacturer or brand information;
- product codes or style references.
Not every label contains every detail, and older garments may use different wording or layouts.
The useful habit is to read the label as a collection of evidence rather than focusing on one line.
Start with the fibre content
The composition label tells you what the garment is made from, usually as percentages.
This can help explain characteristics such as:
- feel;
- drape;
- warmth;
- stretch;
- drying behaviour;
- likely sensitivity to heat or agitation.
But fibre content does not replace the care label.
The care instructions apply to the whole garment, not simply its main fibre.
A 100% cotton dress may still have a lining, trim, print, coating, structured panel or decorative element that limits how it can safely be treated.
What do common fibres tell you?
Fibre content gives useful context, although it should not be turned into a universal washing rule.
Cotton
Cotton can often tolerate domestic washing, but dye, print, construction and finish still matter.
A dark printed cotton T-shirt may need very different treatment from a plain white cotton towel.
Linen
Linen is breathable and naturally prone to creasing.
Its care depends on the garment's construction and finish, so the label should still take priority over assumptions about the fibre.
Wool and cashmere
Wool fibres can be sensitive to heat, moisture and mechanical action.
Excessive agitation or unsuitable washing can cause shrinkage or felting.
If the care label specifies a wool, very mild or hand-wash process, follow that guidance rather than treating the item like ordinary machine-washable knitwear.
Silk
Silk can react badly to unsuitable washing, heat, friction or stain treatment.
Colourfastness, finish and construction vary, so silk should not automatically be assumed to be hand washable.
Polyester and nylon
Synthetic fibres can be practical and quick-drying, but that does not mean every polyester or nylon garment is low maintenance.
Heat-sensitive finishes, pleating, mesh, coatings, prints and trims can all affect the permitted care process.
Elastane
Elastane provides stretch, but excessive heat can affect stretch fibres over time.
Again, the manufacturer's care instructions should determine the actual treatment.
What can fibre content not tell you?
Composition is not a quality score and it does not tell you everything about construction.
A 100% wool garment may be beautifully made or loosely knitted and prone to snagging.
A polyester dress may be inexpensive or exceptionally well cut and durable.
Judge the fibre alongside:
- seams;
- lining;
- fastenings;
- finishes;
- condition;
- the care instructions provided.
What are the five main care-label symbols?
The standard GINETEX/ISO care-labelling system uses five main symbol families, presented in this order:
- wash tub — washing;
- triangle — bleaching;
- square — drying;
- iron — ironing;
- circle — professional textile care.
The symbols describe the maximum permitted treatment for the textile article. A milder treatment or lower temperature can generally be used where appropriate.
What does the wash-tub symbol mean?
The wash tub tells you whether domestic washing is permitted and what level of washing treatment is appropriate.
A number inside the tub gives the maximum washing temperature in degrees Celsius.
For example:
- 30 means a maximum of 30°C;
- 40 means a maximum of 40°C;
- 60 means a maximum of 60°C.
The number is a maximum, not an instruction that you must always wash at that temperature.
What do lines under the wash tub mean?
One line beneath the tub indicates a mild process with reduced mechanical action.
Two lines indicate a very mild process.
These markings are important because temperature is only one part of washing. Mechanical action also matters.
What does the hand-wash symbol mean?
A hand inside the wash tub indicates that the garment should be washed using the specified hand-washing process rather than a normal domestic machine wash.
Modern care-labelling standards can distinguish between different hand-wash conditions, so the symbol should be interpreted as shown on the actual garment rather than reduced to a single universal home-care recipe.
What does a crossed-out wash tub mean?
Do not wash.
A crossed wash-tub symbol means the garment should not be washed using a domestic wet-washing process.
Look at the remaining care symbols for the permitted alternative.
What does the triangle symbol mean?
The triangle gives bleaching instructions.
An empty triangle means bleaching with chlorine or oxygen bleach is permitted.
A triangle containing two diagonal lines means oxygen or non-chlorine bleach only.
A crossed-out triangle means do not bleach.
This is one area where guessing can cause irreversible damage, particularly to coloured, printed, aged or delicate textiles.
What does the square symbol mean?
The square gives drying instructions.
A circle inside the square refers specifically to tumble drying.
What do tumble-dry dots mean?
Under the current GINETEX/ISO symbol system:
- two dots mean tumble drying is permitted at normal temperature;
- one dot means tumble drying is permitted at a lower temperature;
- a crossed-out tumble-dry symbol means do not tumble dry.
This is important because the dots indicate the severity of the tumble-drying temperature.
There is not a standard three-dot “high heat” tumble-dry step in this system.
What do natural-drying symbols mean?
A square without a circle can give instructions for natural drying.
Depending on the symbol, this may indicate:
- line drying;
- drip line drying;
- flat drying;
- drip flat drying;
- drying in the shade.
These instructions can be particularly important for knitwear and garments that may stretch or distort when wet.
What does the iron symbol mean?
The iron symbol gives the maximum ironing treatment.
Dots inside the iron indicate temperature severity.
Under the current ISO care system, ironing instructions can include:
- high-temperature ironing;
- moderate-temperature ironing;
- low-temperature ironing;
- low-temperature ironing without steam in certain symbols;
- do not iron.
A crossed-out iron means ironing is not permitted.
Do not assume steam is always safe simply because ironing is allowed. Some low-temperature symbols specifically restrict steam because it can damage sensitive textiles.
What does the circle symbol mean?
The circle refers to professional textile care.
Letters within the circle give professional cleaners information about the permitted cleaning process and solvents.
Bars beneath the circle can indicate a milder professional-cleaning process.
A crossed-out circle means the corresponding professional dry-cleaning process is not permitted.
The professional-care symbols are primarily instructions for textile-care specialists rather than a home-cleaning recipe.
Does “dry clean” always mean the same thing?
No.
Professional textile-care symbols can specify different dry-cleaning or professional wet-cleaning processes.
The letters and bars within or beneath the circle matter.
For delicate, vintage or heavily embellished clothing, it can be useful to point out existing damage, ageing, loose trims or unusual construction to the cleaner before treatment.
What does a cross through a care symbol mean?
A cross through a care symbol means that treatment should not be used.
For example:
- crossed wash tub — do not wash;
- crossed triangle — do not bleach;
- crossed tumble-dry symbol — do not tumble dry;
- crossed iron — do not iron;
- crossed professional-care symbol — that professional process is not permitted.
This is one of the simplest and most useful rules to remember.
Does a care label show the safest possible treatment?
More precisely, the symbols describe the maximum permitted treatment.
A garment labelled for washing at up to 40°C does not mean it must always be washed at 40°C.
A milder process may be appropriate depending on how soiled the garment is and the detergent or equipment being used.
The important thing is not to exceed the care limits shown.
Why does the whole garment matter?
Care instructions are not based only on the largest fibre percentage.
They can take account of:
- colour;
- finishing treatments;
- buttons;
- zips;
- prints;
- embellishments;
- linings;
- applications;
- overall garment construction.
That is why a garment that looks straightforward by fibre content can still carry restrictive care instructions.
The label is written for the finished garment, not merely the raw fabric.
Read written instructions as well as symbols
Some garments include additional wording such as:
- wash inside out;
- wash separately;
- remove belt before washing;
- iron on reverse;
- reshape while damp;
- do not wring;
- close fastenings before washing.
These instructions can address specific risks that the five main symbol families cannot explain in detail.
If written instructions and symbols appear together, read them as one set of care information.
Should you always turn clothes inside out?
No.
Turning some garments inside out can help reduce abrasion to prints, dark surfaces or decorative finishes, but it is not a universal rule for every textile.
If the manufacturer specifically instructs you to wash inside out, follow that instruction.
Otherwise, consider the garment's construction and finish rather than treating it as an automatic step.
Should zips and buttons always be fastened before washing?
Not every fastening needs identical treatment.
Some manufacturers explicitly instruct customers to close zips, hooks or other fastenings before washing to reduce snagging or distortion.
Follow garment-specific instructions where provided.
For unusual, delicate or heavily structured clothing, avoid relying on generic laundry rules where the label gives more precise guidance.
What does the size label tell you?
A size label tells you the manufacturer's intended size designation.
It does not necessarily tell you how the garment will fit you now.
Sizing varies between:
- brands;
- countries;
- decades;
- garment types;
- different cuts from the same brand.
Pre-owned clothing may also have changed through washing, stretching, shrinkage or alteration.
Measurements are often more useful than the number or letter on the size label.
Which clothing measurements are most useful?
Depending on the garment, useful measurements may include:
- pit to pit;
- shoulder width;
- waist;
- hips;
- front rise;
- inside leg;
- sleeve length;
- overall length.
Compare them with a similar garment you already own and like wearing.
At A2B, that matters particularly with one-off clothing. A clear measurement tells you more about the actual piece in front of you than relying on a size label in isolation.
Can clothing labels help date vintage garments?
They can provide clues, but they should not be treated as automatic proof of age.
Useful details may include:
- brand-label design;
- care-label format;
- country of manufacture;
- fibre terminology;
- company information;
- product codes;
- label materials and construction.
Those clues are strongest when compared with reliable brand or historical evidence.
A label can support dating. It should not be forced to prove more than it actually shows.
What if the care label is missing?
Missing labels are common in pre-owned and older clothing.
A missing care label does not prove:
- that the garment is vintage;
- that it is handmade;
- what fibre it contains;
- how it should be washed.
It simply means there is less documented information available.
If the fibre and care requirements are uncertain, avoid inventing them from appearance alone.
What if the label is faded or unreadable?
Treat unreadable information as unknown rather than trying to turn a partial mark into certainty.
You may still be able to use:
- remaining readable text;
- construction;
- brand information;
- other labels;
- known product records;
- specialist advice where appropriate.
If the appropriate cleaning method still cannot be established, the safest decision may be to delay cleaning until the material and construction are better understood.
Can you identify fabric by touch or appearance?
Sometimes you can make an informed observation, but visual or tactile inspection alone does not reliably prove fibre content.
Polyester can imitate silk-like surfaces. Acrylic can resemble wool. Blended fabrics can be particularly difficult to identify accurately without a label or testing.
For a listing or buying decision, there is an important distinction between:
“feels like wool”
and
“100% wool.”
The first is an observation. The second is a factual fibre claim and needs evidence.
What if the composition and care instructions seem surprising?
Do not assume the care label must be wrong simply because its instructions look more restrictive than expected.
The manufacturer may be accounting for a feature that is not obvious from the fibre composition alone.
For example, the issue may be:
- a coating;
- a lining;
- bonded construction;
- embellishment;
- dye stability;
- shape retention;
- hardware;
- a specialist finish.
Where the original label is intact, the garment-specific care instruction should normally take priority over a generic fibre rule.
How should you approach pre-owned and vintage clothing care?
Age introduces extra uncertainty.
Previous washing, storage, alterations and environmental exposure may all affect how a garment behaves now.
Before cleaning an older piece, look for:
- weak seams;
- loose beads;
- brittle elastic;
- lifting coatings;
- colour instability;
- damaged linings;
- fragile trims;
- previous repairs.
A care label tells you how the garment was intended to be treated when produced. Condition still matters when deciding how an older piece should be handled today.
How to read a clothing label before buying
A quick label check can answer several useful questions.
- What is it made from? Check fibre composition.
- How does the maker say it should be cleaned? Read all five care-symbol families.
- Are there extra written instructions? Look beyond the symbols.
- Does the size label match the measurements? Do not assume.
- Can the label support age or origin? Treat it as evidence, not automatic proof.
- Is anything missing or unreadable? Keep those details unknown rather than guessing.
So, how do you read clothing labels properly?
Read the whole label, not one isolated symbol or percentage.
Start with fibre content, then check washing, bleaching, drying, ironing and professional-care instructions. Read any additional wording, compare the stated size with actual measurements and treat missing information as unknown.
At A2B, clothing labels are part of the evidence of the piece. They can help explain what something is, how it should be cared for and sometimes where or when it may have been made — but only if we let the label say what it actually says.
The useful question is not “what do I normally do with this fabric?” It is “what does this particular garment tell me?”
Explore our clothing and footwear finds, reading each garment’s documented materials and condition.