Because they are
cotton
What is made from Nylon? shirts, cloths, sheets and lots more It is not a natural material.
usually nylon
no
what materials are used to make soccer jerseys
Basketball is one of the most popular sports in the world. The nets for basketball are typically made of heavyweight nylon or high density polymer fabric.
Cotton, linen, wool, polyester, silk, rayon, nylon, hemp- just about any fabric.
Footballs have better grips than others because of the material they are made out of. A football that is made out of leather will have a better grip than a football that is made out of nylon.
nylon
Nylon.
Celtic
Umbrellas are made out of paper and nylon.