Period underwear has built-in absorbent layers and a leak-resistant barrier. Choose absorbency by your flow (light, moderate, heavy or overnight), a snug fit around the legs, and materials you are comfortable with. Rinse in cold water after wearing, wash on a gentle cycle, and air dry. Many people use it alone on light days and as backup with a cup or disc on heavy days.
Period underwear is reusable and comfortable, and pairs well with other products.
Absorbency levels
| Level | Flow |
|---|---|
| Light | Spotting, light days, backup |
| Moderate | Average days |
| Heavy | Heavy days |
| Overnight | Sleep and long wear |
Brands describe absorbency differently; check their charts.
Choosing
- Absorbency for your heaviest days.
- Style: brief, boyshort, thong, sleep shorts.
- Snug leg openings to prevent leaks.
- Materials and any treatments; check brand disclosures.
Care
Rinse in cold water, wash cold on a gentle cycle, air dry, no softener.
Compare with menstrual cups and discs, and track your flow in a cycle app. Browse cycle and period care.
Common questions
How long can I wear period underwear?
Depending on flow and absorbency, many brands suggest up to around 12 hours. Change sooner on heavy days.
Can I use fabric softener?
No. Softener can reduce absorbency. Follow the care label.
Is it good for postpartum bleeding?
Some brands make postpartum styles with higher absorbency. Follow your clinician's advice after birth.