First of all, everyone knows that all cotton has a higher cotton content, so it must be more comfortable to touch with your hands than polyester cotton. Polyester cotton T-shirts contain polyester heavier. Polyester is a chemical fiber fabric, which is not easy to wick away perspiration and has thorns to the touch. It feels like pulling, so its hand feel must be worse than that of a cotton T-shirt, and it is prone to static electricity, and it looks bright when viewed diagonally.
If you can’t tell by hand, you can try it with fire. Use a lighter to burn the inside edge of the pocket. The cotton T-shirt will smell of burning paper. The ashes can be crushed by hand. After the T-shirt is heavy with polyester, it will not appear ashes after burning, it will condense together and cannot be crushed by hand. In fact, it is very simple to distinguish between cotton and polyester-cotton T-shirts. It is recommended that you can feel it directly by touching it with your hands. This is the easiest way.