KNIX Super Leakproof High Rise Period Underwear - Heavy Absorbency 2
KNIX Super Leakproof High Rise Period Underwear - Heavy Absorbency 2
Price subject to change. Tap below for current.
Couldn't load pickup availability
In this review the KNIX Super Leakproof High Rise Period Underwear is evaluated for people who want reusable protection for heavy periods or light bladder leaks. The bottom line: these high waist period panties offer an extended 9' built-in liner and heavy absorbency equivalent to about two regular pads or four super tampons, making them primarily useful for overnight use, heavy-flow days, or as backup protection during active moments. The underwear is comfortable out of the package and promises quick dry performance while being fully machine washable and reusable.
Key Features
- Heavy Absorbency: Absorbs roughly the same as two regular pads or four super tampons, making it suitable for heavier flow or moderate incontinence protection.
- Extended Gusset: A 9' built-in liner helps stop blood, pee, or sweat from leaking through, providing coverage across the crotch area for added confidence.
- Quick Dry: The fabric is designed to dry quickly so the underwear feels comfortable sooner after washing and between wears.
- Machine Washable and Reusable: Tossing these period panties in the wash replaces single-use pads and tampons, reducing ongoing waste and cost.
- Comfortable Fit: The high rise sits at the natural waist with medium bum coverage and the fabric relaxes with wash and wear for a more personalized fit.
- Tested Design: KNIX has over a decade of experience and lab- and wear-testing backing the product's function and durability.
Who It's For
These underwear are best for people who experience heavy menstrual flow, need a reliable backup for tampons or cups, or have occasional light bladder leaks and want sustainable, reusable protection. The high rise and extended gusset make them particularly good for overnight use or for those who prefer fuller coverage through the crotch and bum.
Those who should look elsewhere include users who need maximum ultra-heavy or continuous incontinence protection beyond pad-level absorbency, or anyone who prefers disposable products for travel or situations without access to laundry facilities.
Pros & Cons
Pros
- Comfortable, snug fabric that relaxes with wear for a better fit and does not irritate the skin.
- Effective coverage from the 9' extended gusset that helps prevent leaks during coughs or laughs.
- Machine washable and reusable construction reduces waste compared with disposable period products.
Cons
- Some reviewers report mixed results on absorbency for the heaviest flow moments, so multiple layers or backup may be needed for very heavy bleeding.
- The feel is described as swimwear-like by some, which may not suit anyone expecting cotton-only softness.
Specifications
| Brand | KNIX |
| Style | High rise period underwear, 1 pack |
| Absorbency | About equal to 2 regular pads or 4 super tampons |
| Gusset | Extended 9' built-in liner |
| Care | Machine washable and reusable |
| Coverage | Natural waist with medium bum coverage |
Our Verdict
The KNIX Super Leakproof High Rise period underwear is a solid choice for anyone seeking reusable, heavy-absorbency protection with good coverage and comfort. It represents strong value for users who can launder regularly and want to reduce disposable waste, though those with very heavy continuous leaks may need supplemental protection for complete overnight security.
Frequently Asked Questions
How much absorbency does this underwear provide?
It absorbs roughly the same as two regular pads or four super tampons, suitable for heavy flow and light incontinence.
Can these be washed in a standard machine?
Yes, they are machine washable and designed to be reused after laundering.
Will the high rise fit comfortably?
The high rise sits at the natural waist and provides medium bum coverage; the fabric feels snug initially but relaxes with wear and washing.
Editor's Take
The KNIX Super Leakproof High Rise period underwear is a reliable reusable option for heavy flow and light bladder leaks, offering strong coverage with a 9' built-in liner and good comfort; best for users who can launder regularly and want to reduce disposable waste.

Recently viewed
Recently viewed products will appear here as customers browse the store.