Nylon is a family of synthetic polymers characterised by amide linkages, typically connecting aliphatic or semi-aromatic groups.
Nylons are generally white or colourless and possess a soft texture, with some varieties exhibiting a silk-like appearance. As thermoplastics, nylons can be melt-processed into fibres, films, and diverse shapes. The properties of nylons are often modified by blending with a variety of additives.
Numerous types of nylon are available. From Wikipedia