Gun, I'm sorry that I insist on this matter. But it needs to be mentioned because it's the most common misconception about clothes.
Nylon is one of the most advanced materials you know. The problem is that it's also used in very cheap fabrics. The problem is not the material itself, it's how its transformed from a single filament to a woven fabric.
Let me go into details of this offtopic: The finer the filaments, the more material you need, more time and effort, thus it's more expensive. The same is valid for your carpet from Iran or from your grand mother woolen scarf. Cheap shirts are therefore made of thick filaments and are of a bad quality.
The same is true for cheap cotton shirts. They have big cotton filaments and are therefor lousy. Please check my post above about very fine Egyptian Cotton.
Let me itinerate that one of the finest materials are made of Nylon. They are woven from extremly fine filaments, they feel so extrem comfortable on the skin you don't want ever someting else. Ask your wife or your women pilot, they know it!
And top athletes know it too. There isn't any single fabric with such a variety of application. You can use it in summer for cool clothes, in winter for warming ("fleece", "Polartec"). Most functional clothes are made of it. Your wive's bra. Your maid's cleaning tissues...
Dani