ISO 3758 A circle inside a square, crossed out with an X

Do not tumble dry

The item should not be tumble dried.

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

Easily confused with

Tumble dry, low heatThe same circle in a square with one dot: tumble dry, low heat.
Do not dry cleanA crossed circle with no square around it is about dry cleaning, not drying.

A circle inside a square stands for tumble drying. Crossed out, it indicates that tumble drying is not suitable for the item.

Also searched as: crossed out circle in square, no tumble dry.

Textiles — Care labelling code using symbols, ISO 3758, ISO
Standard Guide for Care Symbols for Care Instructions on Textile Products, ASTM D5489, ASTM International

Last reviewed September 23, 2026.