Period and Light Leak Backup: The gusset has a 3-layer structure with a graphene one-way moisture-wicking layer for light flow, a leakproof barrier, and a breathable mesh layer. These menstrual underwear must be paired with pads, liners, tampons, or cups and are not designed to replace menstrual products on their own Soft Breathable Mesh: These leakproof period underwear for women made of 90% nylon and 10% spandex breathable mesh, each pair weighs about 50g for a light and stretchy fit. These breathable menstrual underwear help offer a less bulky feel for women who want comfort during period days, light leaks, or daily wear Comfortable Body Fit: The crotch width increases from about 3 inches in size S to about 4.2 inches in size 5XL. The high waisted period underwear style, elastic waistband, stretchy leg openings, and widened gusset help fit different body shapes with more secure coverage Full Coverage Protection: The rear protective area expands from about 7.9 inches in S to about 11 inches in 5XL, with coverage extending toward the waistband. This full coverage period panties design helps wrap the hips and adds reassurance for sitting, commuting, lying down, or long hours outside Reusable 5-Pack Value: This period underwear for women 5 pack comes in 5 colors for easy replacement and daily rotation. They are machine washable for simple care. For best comfort and use, wash before the first wear. Suitable for women who want breathable period underwear, postpartum backup need, or light incontinence support ACEJUNE Period Underwear for Women is designed for women who want breathable comfort and extra backup during period days, light flow, and incontinence leaks. Made with a lightweight breathable mesh body, these period panties combine daily comfort with practical leakproof backup for work, travel, commuting, driving, long meetings, and times when changing disposable menstrual products is not convenient. The gusset features a 3-layer structure: a graphene one-way moisture-wicking layer for light flow, a leakproof barrier, and a breathable mesh layer. This design helps provide added reassurance, but these period underwear must be paired with pads, liners, tampons, or cups and are not intended to replace menstrual products on their own, especially for moderate to heavy flow. Made with 90% nylon and 10% spandex breathable mesh, each pair weighs about 50g for a light, flexible, and less bulky feel under everyday clothing. The widened gusset increases from about 3 inches in size S to about 4.2 inches in size 5XL, offering more coverage where women need it most. The rear protective area widens from about 7.9 inches in size S to about 11 inches in size 5XL, with coverage extending toward the waistband for added back and hip protection. With a high waisted fit, elastic waistband, stretchy leg openings, and full coverage rear design, these leakproof underwear for women are made to fit different body shapes comfortably. They are also a practical backup choice as panties for women over 60 who need light bladder leak protection during daily wear, travel, driving, or long hours outside. This 5 pack includes 5 colors for easy daily rotation, washing, and replacement throughout your cycle. A practical women underwear pack for period days, light incontinence backup, postpartum changes, and moments when extra protection feels helpful.