describe: High cotton fabric: 95% cotton, 5% spandex, leak-proof lining; premium cotton and spandex provide good comfort and flexibility. Highly elastic, moisture-wicking, soft and comfortable, providing visible texture and skin-friendly wearing experience. Three-layer leak-proof lining design: Consisting of an inner soft and easy-to-clean lining, a middle water-absorbent leak-proof layer and an outer breathable cotton, it can greatly prevent accidental leaks, no more messes on the mattress and no embarrassing ones on your pants. Stains. Recommended use: Menstrual cycle, postpartum bleeding or urinary incontinence. Our women's period briefs provide extra protection against leakage. Must be used with sanitary napkins, tampons, panty liners, menstrual cups, maternity pads or incontinence pads. Product size: SX (80-110 catties) S (110-130 catties) M (130-150 catties) L (150-170 catties) XXL (190-220 catties) 3XL (220-260 catties) XL (170-190 catty) Packing list: 4 pieces of breathable menstrual panties Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia