Nylon is made from chemicals in oil. They are mixed with water and heated in a large container. When the mixture is cooled down a white solid is formed. This is made into flakes. The flakes are melted and the liquid is squeezed through small holes like those in a watering can. A long thread of nylon is made from each hole.

Nylon is a stronger fibre than either wool or cotton, but it does not absorb water as well as they do. If a piece of clothing is made entirely from nylon it is uncomfortable because the sweat cannot escape. Nylon is mixed with other fibres so a material can be made that is both strong and absorbent.