First Quality Adult Briefs: New Advanced Zoning System (AZS™) Zone 1: Targeted Acquisition Zone — New core design incorporates faster absorbing acquisition layer that increases acquisition rate and skin dryness by 25% to 40% (depending on the brief style), therefore promoting odor control, healthy skin and wearer comfort. Zone 2: Fecal Containment Zone — Scientifically designed to lock up loose stool, maintaining healthy skin pH balance. Zone 3: Frontal Zone — Beneficial feature for bowel and bladder training programs. No more throwing away of unsoiled briefs, which equals beneficial cost savings. Frontal Zone ensures convenient reseal-ability for improved fit and accurate sizing. (AZS™ has been incorporated into the Prevail® T, Protective Underwear, Breathable, IBF, IB and PF series.) Youth (Beige) fits 15"-22", Small (Green) fits 20"-31", Medium (White) fits 32"-44", Large (Blue) fits 45"-58", X-Large (Beige) fits 59"-64", XX-Large fits 62"-73".