Knix
Super Leakproof® No-Show Bikini - Original - Sale
$20.30$2930% off
Buy at KnixIf you buy through this link the brand may pay us a commission, at no cost to you. It never changes our numbers. Disclosure
What “Heavy” means here
Knix's Heavy tier holds 36–63 mL Data quality grade C, conflicting / unconfirmed claim by the brand's own published claim (4-7 super tampons (collection page, re-confirmed 2026-06-11; blog says 3-6; Super Leakproof No-Show Bikini PDP states 'Now absorbs about 6 super tampons')).
Sizesstock checked 2026-06-11
- XL
- XXL
- XXXL
- XXXXL
Not sure which size? One hip measurement answers it for every brand.
Over two years
This pair
$20.30
once - built to last about two years with normal care (the brand's own guidance).
Disposables
$120 to $288
over the same two years, at $5 to $12 a month - a commonly cited range.
A reusable pair only replaces disposables on the days you actually wear it, so your real saving depends on how often you reach for it. The more you do, the further a one-time $20.30 goes against a monthly cost. These are illustrative figures you can adjust, not a measured PeriodFinder number.
This absorbency in other brands' language
Knix Heavy holds about 36–63 mL. To get the same real coverage elsewhere, you'd need:
- ThinxAll Day(100 mL)Data quality grade A, brand publishes mL
- ModibodiSuper(50 mL)Data quality grade A, brand publishes mL
- SaaltSuper(40–50 mL)Data quality grade B, converted from tampon counts
- Proof (Proof by Always)Overnight (Hi-Rise / Boyshort)(45 mL)Data quality grade B, converted from tampon counts
- Ruby LovePeriod underwear (one level)(12.5 mL)Data quality grade B, converted from tampon counts
- The Period CompanyHeavy(45 mL)Data quality grade B, converted from tampon counts
- BambodyHigh Absorbency(10 mL)Data quality grade C, conflicting / unconfirmed claim
- AisleSuper (Heavy / overnight)(40 mL)Data quality grade A, brand publishes mL
- WUKASuper Heavy(60 mL)Data quality grade A, brand publishes mL
- RaelReusable Boyshort(15–25 mL)Data quality grade C, conflicting / unconfirmed claim
- Hanky PankyRegular(15 mL)Data quality grade B, converted from tampon counts
- SkimsPeriod Panties Brief(15 mL)Data quality grade B, converted from tampon counts
Tier-for-tier equivalence by midpoint capacity. Full table · Methodology
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