How to read a fibre composition label

Short answer: The fibres are listed in descending order by weight. If viscose comes first, it is the main material. Elastane always comes last because the amount is small.

The order follows weight

The material listed first makes up most of the garment's weight. See bamboo t-shirts for women.

Viscose from bamboo is often listed as viscose

The rules require the fibre name, not the raw material. Bamboo viscose is therefore written as viscose. See bamboo clothing for women.

Elastane in small amounts matters a lot

Two to five percent gives stretch and recovery without changing the feel. See bamboo underwear for women.

Blends behave like their weakest link

A blend is washed according to the most delicate material in it. See bamboo socks for women.

Frequently asked questions

Why does bamboo not appear on the label?

Because the rules require the fibre name. Bamboo viscose is written as viscose, which is the fibre's name.

What does the order of materials mean?

Descending by weight. What is listed first makes up the largest share of the garment's weight.

Why is elastane always listed last?

Because the amount is small, typically two to five percent. That is enough to give stretch.