Period Panty Size Guide India: How to Measure & Choose (M–L, L–XL, XL–XXL)
What's in this guide
Most period panty leaks are not absorbency failures. They are fit failures. Getting your size right is the single cheapest way to stop leaking.
Why size matters more than you think
A period panty protects through contact. The leg guards need to sit flush against your skin and the waistband needs to stay put. When a panty is too small, the waistband stretches, the whole garment rides down and the leg guards pull away from the body — creating exactly the gaps flow escapes through. When it is too large, it sags and shifts.
This is why sizing is quoted in waist centimetres rather than S/M/L clothing sizes. Clothing sizes vary wildly between brands; a waist measurement does not.
How to measure your waist correctly
- Use a soft measuring tape. If you do not have one, use a string and measure it against a ruler afterwards.
- Measure around the part of your waist where you normally wear your underwear waistband — usually just below the navel, not at the narrowest part of your torso.
- Keep the tape level all the way round and snug, but not tight. You should be able to slip one finger under it.
- Breathe out normally and stand relaxed. Do not hold your stomach in — you will end up with a panty that digs in.
- Note the number in centimetres.
Measuring in inches? Multiply by 2.54 to get centimetres. A 32-inch waist is roughly 81 cm; 36 inches is about 91 cm; 40 inches is about 102 cm.
Period panty size chart
| Size | Waist (cm) | Waist (approx. inches) | Typically suits |
|---|---|---|---|
| M–L | 60–100 cm | 24–39" | Slim to average build |
| L–XL | 80–120 cm | 31–47" | Average to fuller build |
| XL–XXL | 100–140 cm | 39–55" | Fuller build, postpartum recovery |
Every SheWon Period Panty pack contains 10 panties.
If you are between two sizes
Size up. This is the opposite of how most people shop for clothes, and it is the right call here for three reasons:
- A slightly roomier panty still seals at the legs; a tight one stretches and pulls the guards away from your body.
- Period bloating is real. Many women measure 2–4 cm larger on days one and two than they do mid-cycle.
- A tight waistband digs in over a 12-hour wear, which is exactly when comfort matters most.
So a 100 cm waist should choose L–XL rather than the top edge of M–L. A 120 cm waist should choose XL–XXL.
Signs you are wearing the wrong size
Too small
- Red marks at the waist or thighs after removing
- The waistband rolls down during the day
- Leaks at the leg openings rather than through the panty
- It feels tight to breathe in when you sit down
Too large
- The panty sags or shifts when you walk
- Gaps at the leg openings
- You find yourself pulling it up repeatedly
Before you blame the product: after pulling on a period panty, run a finger around both leg openings to make sure the guards are lying flat and facing outward, not folded inward. A folded leg guard is the single most common cause of a leak in a correctly sized panty.
Sizing after delivery
Your body does not return to its pre-pregnancy measurement immediately, and comfort matters more than usual while you are healing — particularly if you have stitches or a caesarean scar.
Measure again a day or two after delivery rather than assuming your usual size, and choose the more generous option. Many women who normally wear M–L are most comfortable in L–XL or XL–XXL during the first few weeks, when flow is heaviest and a soft, non-digging waistband is a genuine relief.
For more on this stage, read our guide to postpartum bleeding and recovery care.
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Join the waitlistFrequently asked questions
Use a soft measuring tape around the part of your waist where your underwear waistband normally sits, usually just below the navel. Keep the tape level and snug but not tight, breathe out normally, and note the measurement in centimetres.
SheWon period panties come in three sizes based on waist measurement: M-L fits 60-100 cm, L-XL fits 80-120 cm and XL-XXL fits 100-140 cm. Every pack contains 10 panties.
Size up. A slightly roomier panty still seals correctly at the legs, allows for period bloating, and stays comfortable across a long wear. A tight panty stretches and pulls the leg guards away from your body, which causes leaks.
The most common reason is a leg guard folded inward while pulling it on. After wearing, run a finger around both leg openings to check the guards are flat and facing outward.
Measure again after delivery rather than assuming your usual size, and choose the more generous option. Many women are most comfortable in L-XL or XL-XXL in the first few weeks postpartum.
Sources & further reading
- NHS — Periods. www.nhs.uk
- American College of Obstetricians and Gynecologists — Postpartum care. www.acog.org
This article is general information about menstrual hygiene products and is not medical advice. For persistent heavy bleeding, severe pain or any concern about your health, please consult a qualified doctor.