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
Cotton, linen, wool, polyester, silk, rayon, nylon, hemp- just about any fabric.
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.
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.
The best types of shirts to wear while working out are moisture-wicking shirts made of breathable materials like polyester or nylon. These shirts help keep you dry and comfortable during exercise by wicking away sweat and allowing for better airflow.
Nylon.
nylon
Celtic