A second case of an adult multi-level leak-proof underwear, wherein a cleaning portion is sewn between the front and back of a perineal portion of a trouser body, and the cleaning portion is formed by laminating a plurality of layers of functional materials, which is From the inside to the outside, including a moisture-absorbing and quick-drying cloth, a terry cloth, a water-absorbent non-woven fabric, a water-repellent water-repellent cloth, and a needle-punched rib cloth are sequentially and evenly and seamlessly stitched on the pants body, firstly through the moisture-absorbing and quick-drying cloth. Let the urine absorb quickly and spread to the next layer, so that the surface is always dry, and then a large amount of urine is absorbed and locked by terry cloth and water-absorbent non-woven cloth, and then the urine is prevented from seeping out to the underwear through the anti-seepage water-repellent cloth. The main body and the outermost layer are squeezing rib fabrics with antibacterial and deodorizing treatments, which have the effects of deodorizing, bacteriostatic and breathable, so that the cleaning department of the underwear can keep the pants dry even after absorbing urine. Breathable and not easy to breed bacteria, so that the skin around the perineal area of the wearer is not prone to flush red eczema.一種成人多層次防漏內褲第二案，是一褲體的會陰部前後之間縫設一保潔部，而該保潔部是由多層的具功能性的材料所疊合車縫而成，其是由內而外包括一吸濕快乾布、一毛巾布、一吸水不織布、一防滲潑水布、以及一抽針羅紋布依序在褲體上均勻緊緻無痕的縫合，首先透過吸濕快乾布讓尿液快速吸收通過而擴散到下一層，使其表面始終保持乾爽，再藉由毛巾布及吸水不織布將大量的尿液吸收鎖住，並再透過防滲潑水布防止尿液滲出外流至內褲本體，最外層則是具抑菌消臭後處理的抽針羅紋布，具消臭、抑菌及透氣的效果，故令內褲的保潔部即使在吸收尿液後，仍能保持褲內的乾爽透氣與不易讓細菌滋生，達到讓穿著者會陰部周圍處的皮膚不易發生潮紅濕疹的問題。
