Abena, the manufacturer of the Abri-Form Adult Brief Line, has a reputation for making the highest quality and the most absorbent incontinence products in the world. Currently, the Abri-Form Line has plastic-backed versions (called Abri-Form Comfort) AND breathable, cloth-backed versions (called Abri-Form Premium). Both versions have been released with different absorption capacities based on four levels: Level 1 thru Level 4. All Abri-Form Briefs feature soft standing leakage barriers, refasten able tape or Velcro tabs, an elastic waistband, and unsurpassed quality of construction. And most importantly, Abri-Form Briefs absorb more than U.S. manufactured products. For example, just one Level 4 brief offers up to four times the absorbency of a typical store-brand product. This listing contains the Abri-Form (M4) Comfort Brief. This is a Medium plastic-backed product with an Absorption Level 4 (formerly X-Plus and the most absorbent line by Abena). It absorbs up to 3600ml. The Medium size fits 28″ to 44″ waists/hips.