Buy a power lifting belt the support you get from these belts are great. Don't waste your money on those cheap workout belts that have padding on the back. Power lifting belt GG.
Also, I can tell you that Anthrogeekuconn here at ProMuscle has a Scheik women's belt and loves it. It's nylon but plenty stiff for heavy training. Might want something stiffer if it's for powerlifting though.
These belts really give a strong support but I don't know about that results so can't give any suggestions on this. I think they make sure the posture to support the posture of the body for a good shape.
Buy a power lifting belt the support you get from these belts are great. Don't waste your money on those cheap workout belts that have padding on the back. Power lifting belt GG.