Knix
Teen Period Swim Full-Coverage Bikini Bottom - Last Call
$31.50$4530% off
Buy at KnixSearch AmazonIf you buy through this link the brand may pay us a commission, at no cost to you. It never changes our numbers. Disclosure
Sizesstock checked 2026-09-06
- XXS
- XS
- S
- M
- L
- XL
- XXL
Not sure which size? One hip measurement answers it for every brand.
Over two years
This pair
$31.50
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 $31.50 goes against a monthly cost. These are illustrative figures you can adjust, not a measured PeriodFinder number.
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Is this one yours?
Sizing runs differently at every brand, and tier names do not mean the same thing twice. Both are one question away.