# INNERSY Heavy-Flow High-Waisted Period Pants, Pack of 3

INNERSY Heavy-Flow Period Pants are high-waisted reusable menstrual knickers sold in a pack of three. The listing claims absorption of 30 ml instantly and up to 50 ml maximum, with full rear coverage and a lining that extends to the front waistband.

- [Original product page](https://bargainpostbox.co.uk/product/innersy-heavy-flow-high-waisted-period-pants-pack-3)
- [View offer](https://bargainpostbox.co.uk/visit/innersy-heavy-flow-high-waisted-period-pants-pack-3)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: INNERSY
- Category: Fashion & Accessories > Clothing > Underwear & Sleepwear
- Price: 20.18 GBP
- Previous price: 24.99 GBP
- Discount: 19%
- Price checked: 2026-11-14T19:28:40.033Z
- Rating: 4.2 / 5
- Reviews: 162

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The listing says the absorbent lining reaches the front waistband, a detail aimed at front sleepers.
- The maker claims 30 ml instant absorption and up to 50 ml maximum, and positions the pants for night use and heavy-flow days.
- Care instructions recommend a cold rinse, gentle machine washing at 40°C and air drying.

## Pros

- Pack of three provides multiple pairs for rotation between wears and washing.
- Full rear coverage and an extended front lining are useful design details for overnight wear, according to the listing.
- Reusable and machine-washable care is specified, with a recommendation to air dry for durability.

## Specifications

### Identity
- Brand: INNERSY
- Product type: Period pants
- Pack size: Pack of 3
### Absorbency and coverage
- Instant absorption claim: 30ml instantly
- Maximum absorption claim: 50ml at maximum
- Equivalent absorbency claim: equivalent to 4 tampons
- Coverage: full rear coverage
- Front lining: up to the waistband at front
### Fit and care
- Rise: high rise
- Wash instructions: Rinse in cold water, scrub a few times, then machine wash gently at 40°C, air drying is recommended for better durability.

## Before you buy

- Absorbency figures and leak protection are manufacturer claims, not independently verified performance. The listing gives 30 ml as instant absorption and 50 ml as the maximum, so treat these as separate claimed limits rather than a guarantee against leaks.

## A good fit for

- People looking for reusable period underwear with high-rise styling and full rear coverage.
- Buyers who want a claimed capacity of up to 50 ml for heavier-flow or overnight use.
- People seeking washable underwear that the listing also describes for postpartum use or light incontinence.

## Less suited to

- Anyone who needs a verified absorbency level or guaranteed leak prevention.
- Buyers who prefer a low-rise cut or need detailed sizing and fabric-composition information, which are not provided here.

## Customer feedback

Customer feedback highlights comfort, softness, absorbency, washability and perceived leak protection, with some positive remarks about sensitive-skin comfort. Waist coverage receives mixed feedback. These impressions may matter for reusable overnight or heavier-flow use, but they do not verify the listing's 30 ml and 50 ml absorbency claims or guarantee a fit that suits every wearer.
- Positive themes: Customers report comfort and softness.
- Positive themes: Feedback mentions absorbency, washability and perceived leak protection positively.
- Positive themes: Some customers describe them as gentle on sensitive skin.
- Mixed feedback: Waist coverage receives mixed feedback, so the high-rise fit may not feel the same to everyone.

## Frequently asked questions

### How much can these period pants absorb?
The listing claims 30 ml instant absorption and up to 50 ml maximum, described as equivalent to 4 tampons. These are product claims rather than independently verified results.
### How should the pants be washed?
The care guidance says to rinse in cold water, scrub a few times, machine wash gently at 40°C and air dry for better durability.
### Are they described for overnight use?
Yes. The listing presents them for night sleep and says the front lining extends to the waistband, including for front sleepers.
### Can they be used after birth?
The listing says they can serve as postpartum underwear and mentions C-section recovery. It also describes them for light incontinence.

## Alternative options

- [WUKA Stretch Midi Brief Period Pants Heavy Flow Burgundy \| Heavy Flow midi brief underwear with seamless stretch fit and reusable washable protection, Burgundy](https://bargainpostbox.co.uk/visit/innersy-heavy-flow-high-waisted-period-pants-pack-3)
- [ZVZK Period Panties Heavy Flow 30ML Women Absorbent Leak Proof Panty Period Pants Menstrual Underwear Briefs Hipster](https://bargainpostbox.co.uk/visit/innersy-heavy-flow-high-waisted-period-pants-pack-3)
- [INNERSY Period Pants Light Flow High Waisted Menstrual Underwear Pack of 3 \| Leak Proof Cotton Knickers, Washable Full Briefs, Reusable Panties, Back-up Extra Protection, Tag-free, After Birth/C Section](https://bargainpostbox.co.uk/visit/innersy-heavy-flow-high-waisted-period-pants-pack-3)
- [INNERSY Period Pants Light/Medium Flow Menstrual Underwear Briefs Pack of 3 \| 100% Cotton Gusset, Leak Proof Knickers, High Leg Bikini Panties, Lace Waistband, Tag-free‌, Washable Reusable, Peace of Mind](https://bargainpostbox.co.uk/visit/innersy-heavy-flow-high-waisted-period-pants-pack-3)
- [INNERSY Period Pants Heavy Flow High Waisted Postpartum Underwear Pack of 3 \| Soft Cotton Leak Proof Knickers, Reusable Menstrual Briefs, Washable Incontinence Panties, C Section After Birth, Day & Night](https://bargainpostbox.co.uk/visit/innersy-heavy-flow-high-waisted-period-pants-pack-3)
- [INNERSY Period Pants Light Flow High Waisted Menstrual Underwear Pack of 3 \| Leak Proof Cotton Knickers, Washable Full Briefs, Reusable Panties, Back-up Extra Protection, Tag-free, After Birth/C Section](https://bargainpostbox.co.uk/visit/innersy-heavy-flow-high-waisted-period-pants-pack-3)
- [PULIOU Women Period Pants High waisted Heavy Flow Postpartum Underwear Leakproof Menstrual Knickers Extra Protection Pack of 3](https://bargainpostbox.co.uk/visit/innersy-heavy-flow-high-waisted-period-pants-pack-3)
- [INNERSY Period Pants Heavy Flow Menstrual Boxer Shorts Anti-side-leaks \| Soft Cotton Boyshort Knickers, High Waist Leakproof Boxers, Tag-free, for After Birth/C Section Recovery, Under Dress/Skirts](https://bargainpostbox.co.uk/visit/innersy-heavy-flow-high-waisted-period-pants-pack-3)
- [INNERSY Period Pants Light/Medium Flow Menstrual Underwear Briefs Pack of 3 \| 100% Cotton Gusset, Leak Proof Knickers, High Leg Bikini Panties, Lace Waistband, Tag-free‌, Washable Reusable, Peace of Mind](https://bargainpostbox.co.uk/visit/innersy-heavy-flow-high-waisted-period-pants-pack-3)
- [SHARICCA Period Pants Heavy Flow 40ML Absorbency Menstrual Seamless Knickers Leakproof Underwear for Women Soft Breathable Panties](https://bargainpostbox.co.uk/visit/innersy-heavy-flow-high-waisted-period-pants-pack-3)
- [WUKA Stretch Midi Brief Period Pants Heavy Flow Black \| Heavy Flow midi brief underwear with seamless stretch fit and reusable washable protection, Black](https://bargainpostbox.co.uk/visit/innersy-heavy-flow-high-waisted-period-pants-pack-3)

## Add-ons

- [INNERSY Period Pants Heavy Flow High Waisted Menstrual Knickers Pack of 3 \| Bamboo Viscose Briefs, Reusable Leakproof Underwe](https://bargainpostbox.co.uk/visit/zvzk-girls-period-pants-30ml)

## Images

![INNERSY Heavy-Flow High-Waisted Period Pants, Pack of 3 — 1](https://bargainpostbox.co.uk/i/lvlz2SMg-PzfRwuMTYBNzCm47YiXnOrbjRQzVsxPo1fUNgLvxhel_MHx76XtnGdtgPQJiPEWsU7TQjPWmjePzBtKuvau8Hq3vSimcq8QSUzL_47Eyp410fGU.jpg)

![INNERSY Heavy-Flow High-Waisted Period Pants, Pack of 3 — 2](https://bargainpostbox.co.uk/i/IZpLOj-snNmGiz3wPhuToTxUuXBm8uvyyOjRVp8GgEn4krN9vXo6uXH6O1vElwKWoVUKX0ey0HmM825mbssNkCF4RkhEUynGL6FOkCZ5YUiwANbvR88TN4D4.jpg)

![INNERSY Heavy-Flow High-Waisted Period Pants, Pack of 3 — 3](https://bargainpostbox.co.uk/i/syYb3EUfahRVV3qCAeeYSyLnBfQzI5LG0ZwmoO4-JukOhTkG7tcDR2ykE_d2QhP2ZiQBBVr3izYRfwXDBYQuUlhxxuoBqG7mbz_mC-bSsxO7luVNa37g4E6Z.jpg)

![INNERSY Heavy-Flow High-Waisted Period Pants, Pack of 3 — 4](https://bargainpostbox.co.uk/i/_bqxpQ7klp6NNhQpdzTYJ6SE2b6_gydDcTaPD8KoGEmvrCv7cASrAM3oES6VVW_G5F2ZYK72wPaNbqnyt9u-olBm59TVBdV9jmfYYg8TYE17g0h2AWCsDxlP.jpg)

![INNERSY Heavy-Flow High-Waisted Period Pants, Pack of 3 — 5](https://bargainpostbox.co.uk/i/PJKhV3nEKQ8lio7yIhm8Fe9n6IR3wozvs-XTFXaUZew77PS-1sjZBdDglY6iw3-J3vvBPUS1_19fDXNkujbiMW9GFNL93MMCE4HzfEMvO5qgm5ovDEXMhIR4.jpg)

![INNERSY Heavy-Flow High-Waisted Period Pants, Pack of 3 — 6](https://bargainpostbox.co.uk/i/EqkFAORhNzp3KYKWTv7MSfx2F2hZNboM-lEevObaA5a7Aj4Cna3kDB7pXl9gh_JuOIll9aY80Trr7it5lNzJeVlcpgXhx8kDLEFcmtA5QokOfmVadUzGbX4F.jpg)