Women in the subcontinent have been using cloth instead of disposable napkins for centuries. The cloth is washable, reusable, cheap, and environmentally sustainable. Unlike these napkins which will create mountains of waste.
If its made of cotton and other bio degradable materials then i dont see a problem. Besides when the rest of the world create 10x the waste, why should these people not have the same priviledge? We share the air we breathe and planet we live in and so we also should share the responsibility.