Absorbent Underwear Polypropylene / Polyethylene Backing Female 38 to 44 Inch Waist Waistband Style FIT-FLEX Women's Incontinence Underwear. Featuring a new beautiful blush color and three new feminine designs, it is ideal for bladder incontinence or postpartum underwear. Absorbent material is extremely soft, yet strong, and instantly locks in wetness and odors. Underwear is discreet under clothing, unlike bulky adult diapers thanks to the form-fitting elastic strands. The SureFit waistband helps keep the brief in place for a comfortable, underwear-like fit. Unscented underwear is soft, quiet, breathable, and natural rubber latex-free, lotion-free and fragrance-free. FIT-FLEX for Women in Maximum Absorbency is available in four sizes - size small (24-30 inch waist), size medium (31-37 inch waist), size large (38-44 inch waist) and size extra-large (45-64 inch waist).