It is a solid making It does not collapse even if it is laundered Can be used without worrying too much I just think that it is good for welding work if there is a little more thickness of the fabric but for underwear it is for underwear (under pants) I think that there is movement ease because it is a supple fabric that does not go wrong
I do not know whether it is weave or 100% cotton, but the feel when wearing is very good. On the contrary, once washing, it becomes whitish with the relation of light rays, and it looks like a damaged feeling. I am satisfied because comfort does not change.