what does this symbol mean?
ISO 3758 An iron with two dots

Iron, medium heat

The item can be ironed at a medium temperature, up to 150°C (300°F).

Easily confused with

How to read it

Two dots in the iron mean a highest sole plate temperature of 150°C. GINETEX relates it to the wool, silk, polyester and viscose setting; the Canadian government's guide lists polyester, rayon, silk, triacetate and wool. One dot allows 110°C and three dots 200°C.

Where a garment's own label or its manufacturer says otherwise, that takes precedence.

More laundry symbols

The same shape elsewhere

Sources

  • Textiles — Care labelling code using symbols, ISO 3758, ISO, Abstract (ISO 3758:2023)
  • Standard Guide for Care Symbols for Care Instructions on Textile Products, ASTM D5489, ASTM International, section 4.6 (ASTM D5489-25)
  • Textile Care Symbols, GINETEX, the International Association for Textile Care Labelling, p. 8
  • Guide to Apparel and Textile Care Symbols, CAN/CGSB-86.1-2003, Office of Consumer Affairs, Government of Canada, p. 5

Researched, edited and approved by Rory Hansen before publishing. Last reviewed September 24, 2026. How we research

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