Bikini period underwear
The classic mid-rise cut, and the most common style in the category. Bikini period underwear sits below the belly button with moderate coverage - the everyday default most brands build their widest absorbency range on.
Everyday wear across the cycle. Because nearly every brand offers a bikini in several tiers, it is the easiest cut to match to your exact flow - filter by what each pair actually holds below.
Every bikini in stock, highest capacity first
ThinxTeens
Active Mesh Bikini
All Day· 108 mLData quality grade B, converted from tampon counts
Sizes 9-10–15-16
$19
ThinxTeens
All-Day Bikini
All Day· 108 mLData quality grade B, converted from tampon counts
Sizes 9-10–15-16
$19
Thinx
Everyday Comfort Bikini
All Day· 108 mLData quality grade B, converted from tampon counts
Sizes XS–4X
$20
ThinxTeens
3-Pair All-Day Bikini Kit
All Day· 108 mLData quality grade B, converted from tampon counts
Sizes 9-10–15-16
$57
40% offKnix
Ultra Leakproof Zones+® Bikini - Last Call
Ultra· 63–99 mLData quality grade C, the brand's own pages differ; range shown
Sizes XS–XXXXL
$21.60$36
KnixTeens
Teen SuperPlus Leakproof® No-Show Bikini
Ultra· 63–99 mLData quality grade C, the brand's own pages differ; range shown
Sizes XXS–XXL
$32
Knix
SuperPlus Leakproof® No-Show Bikini
Ultra· 63–99 mLData quality grade C, the brand's own pages differ; range shown
Sizes XS–XXXXL
$36
30% offKnixTeens
Teen Super Leakproof® No-Show Bikini - Last Call
Heavy· 36–63 mLData quality grade C, the brand's own pages differ; range shown
Sizes XXS–XXL
$18.90$27
30% offKnix
Super Leakproof® No-Show Bikini - Original - Last Call
Heavy· 36–63 mLData quality grade C, the brand's own pages differ; range shown
Sizes XS–XXXXL
$20.30$29
KnixTeens
Teen Super Leakproof® No-Show Bikini
Heavy· 36–63 mLData quality grade C, the brand's own pages differ; range shown
Sizes XXS–XXL
$27
Knix
Super Leakproof Cotton Bikini
Heavy· 36–63 mLData quality grade C, the brand's own pages differ; range shown
Sizes XS–XXXXL
$29
Knix
Super Leakproof No-Show Bikini
Heavy· 36–63 mLData quality grade C, the brand's own pages differ; range shown
Sizes XS–XXXXL
$29
35% offKnixTeens
Teen Super Leakproof® No-Show Bikini 3-Pack - Last Call
Heavy· 36–63 mLData quality grade C, the brand's own pages differ; range shown
Sizes XXS–XXL
$52.50$81
30% offKnix
Super Leakproof® No-Show Bikini 3-Pack - Original - Last Call
Heavy· 36–63 mLData quality grade C, the brand's own pages differ; range shown
Sizes XS–XXXXL
$52.50$75
30% offKnix
Super Leakproof® No-Show Bikini 3-Pack - Last Call
Heavy· 36–63 mLData quality grade C, the brand's own pages differ; range shown
Sizes XS–XXL
$52.50$75
7% offKnixTeens
Teen Super Leakproof® No-Show Bikini 3-Pack
Heavy· 36–63 mLData quality grade C, the brand's own pages differ; range shown
Sizes XXS–XXL
$75$81
20% offModibodi
Classic Bikini 5 Pack
Super· 50 mLData quality grade A, brand publishes mL
$160$199.95
The Period Company
The Bikini Period. in SportyStretch™ For Heavy Flows
Heavy· 45 mLData quality grade B, converted from tampon counts
Sizes XS–4X
$10.50
The Period CompanyTeens
The Teen Period. Bikini For Heavy Flows
Heavy· 45 mLData quality grade B, converted from tampon counts
Sizes S–L
$10.50
The Period CompanyTeens
The Teen Period. Bikini in SportyStretch™ For Heavy Flows
Heavy· 45 mLData quality grade B, converted from tampon counts
Sizes S–L
$10.50
The Period Company
The Bikini Period. in FlowStretch™ For Heavy Flows
Heavy· 45 mLData quality grade B, converted from tampon counts
Sizes L–S
$12
The Period Company
The Bikini Period. in Organic Cotton For Heavy Flows
Heavy· 45 mLData quality grade B, converted from tampon counts
Sizes XS–6X
$14
The Period CompanyTeens
The Teen Period. Bikini in FlowStretch™ For Heavy Flows
Heavy· 45 mLData quality grade B, converted from tampon counts
Sizes L
$36
48% offKnix
Leakproof Cotton Modal Bikini - Last Call
Moderate· 18–36 mLData quality grade C, the brand's own pages differ; range shown
Sizes XS–XXXXL
$15$29
36% offKnix
Leakproof Cotton Bikini - Last Call
Moderate· 18–36 mLData quality grade C, the brand's own pages differ; range shown
Sizes XS–XXXXL
$16$25
30% offKnix
Leakproof UltraThin No-Show Bikini - Last Call
Moderate· 18–36 mLData quality grade C, the brand's own pages differ; range shown
Sizes XS–XXXXL
$18.90$27
KnixTeens
Teen Leakproof Cotton Bikini
Moderate· 18–36 mLData quality grade C, the brand's own pages differ; range shown
Sizes XXS–XXL
$24
KnixTeens
Teen Leakproof UltraThin No-Show Bikini
Moderate· 18–36 mLData quality grade C, the brand's own pages differ; range shown
Sizes XXS–XXL
$24
Knix
Leakproof UltraThin No-Show Bikini
Moderate· 18–36 mLData quality grade C, the brand's own pages differ; range shown
Sizes XS–XXXXL
$27
Knix
Leakproof Invisible Cotton No-Show Bikini
Moderate· 18–36 mLData quality grade C, the brand's own pages differ; range shown
Sizes XS–XXXXL
$30
37% offKnixTeens
Teen Leakproof UltraThin No-Show Bikini 3-Pack - Last Call
Moderate· 18–36 mLData quality grade C, the brand's own pages differ; range shown
Sizes XXS–XXL
$45.50$72
39% offKnixTeens
Teen Leakproof UltraThin Bikini Holiday 3-Pack - Last Call
Moderate· 18–36 mLData quality grade C, the brand's own pages differ; range shown
Sizes XXS–XXL
$45.50$75
13% offKnixTeens
Teen Leakproof UltraThin Bikini Holiday 3-Pack
Moderate· 18–36 mLData quality grade C, the brand's own pages differ; range shown
Sizes XXS–XXL
$65$75
10% offKnixTeens
Teen Leakproof UltraThin No-Show Bikini 3-Pack
Moderate· 18–36 mLData quality grade C, the brand's own pages differ; range shown
Sizes XXS–XXL
$65$72
16% offKnix
Leakproof UltraThin No-Show Bikini 3-Pack
Moderate· 18–36 mLData quality grade C, the brand's own pages differ; range shown
Sizes XS–XXL
$68$81
20% offModibodiTeens
Teen Hipster Bikini 5 Pack
Moderate· 30 mLData quality grade A, brand publishes mL
$127.50$159.95
21% offModibodi
Classic Bikini 5 Pack Cashew
Moderate· 30 mLData quality grade A, brand publishes mL
$142.50$179.95
The Period Company
The Bikini Period. in Microfiber For Medium Flows
Medium· 20 mLData quality grade B, converted from tampon counts
Sizes XS–6X
$12
WUKA
WUKA Ultimate™ Bikini - Heavy
Heavy· 20 mLData quality grade A, brand publishes mL
Sizes 2XS–XL
$26
Saalt
Leakproof Cotton Bikini
Heavy· 20 mLData quality grade B, converted from tampon counts
Sizes XXS–4XL
$29
40% offKnix
Light Leakproof Luxe Modal Bikini - Last Call
Light· 5–15 mLData quality grade B, converted from tampon counts
Sizes XS–XXXXL
$15$25
40% offKnix
Light Leakproof Lace Bikini - Last Call
Light· 5–15 mLData quality grade B, converted from tampon counts
Sizes XS–XXXXL
$15$25
30% offKnixTeens
Teen Light Leakproof No-Show Bikini - Last Call
Light· 5–15 mLData quality grade B, converted from tampon counts
Sizes XXS–XXL
$15.40$22
30% offKnix
Light Leakproof No-Show Bikini - Last Call
Light· 5–15 mLData quality grade B, converted from tampon counts
Sizes XS–XXXXL
$17.50$25
44% offSaalt
Leakproof Comfort Bikini
Regular· 15 mLData quality grade B, converted from tampon counts
Sizes XXS–4XL
$20$36
44% offSaalt
Leakproof Seamless Bikini
Regular· 15 mLData quality grade B, converted from tampon counts
Sizes XXS–4XL
$20$36
42% offKnixTeens
Teen Light Leakproof No-Show Bikini 2-Pack - Last Call
Light· 5–15 mLData quality grade B, converted from tampon counts
Sizes XXS–XXL
$22$38
KnixTeens
Teen Light Leakproof Cotton Bikini Underwear
Light· 5–15 mLData quality grade B, converted from tampon counts
Sizes XXS–XXL
$22
KnixTeens
Teen Light Leakproof No-Show Bikini
Light· 5–15 mLData quality grade B, converted from tampon counts
Sizes XXS–XXL
$22
Knix
Light Leakproof No-Show Bikini
Light· 5–15 mLData quality grade B, converted from tampon counts
Sizes XS–XXXXL
$25
30% offKnix
Light Leakproof No-Show Bikini 3-Pack - Last Call
Light· 5–15 mLData quality grade B, converted from tampon counts
Sizes XS–XXL
$42$60
36% offKnixTeens
Teen Light Leakproof No-Show Bikini 3-Pack - Last Call
Light· 5–15 mLData quality grade B, converted from tampon counts
Sizes XXS–XXL
$42$66
20% offKnix
Light Leakproof No-Show Bikini 3-Pack
Light· 5–15 mLData quality grade B, converted from tampon counts
Sizes XS–XXL
$60$75
9% offKnixTeens
Teen Light Leakproof No-Show Bikini 3-Pack
Light· 5–15 mLData quality grade B, converted from tampon counts
Sizes XXS–XXL
$60$66
56% off
52% offRuby LoveTeens
Teen Period Underwear - Bikini | Black
Sizes XXS–LG
$11$22.99
52% offRuby LoveTeens
Teen Period Underwear - Bikini | Cream
Sizes XXS–LG
$11$22.99
56% off
56% off
56% offRuby Love
Women's Period Underwear - Bikini | Hot Pink
Sizes SM–3XL
$11$24.99
56% offRuby Love
Women's Period Underwear - Bikini | Rose Quartz
Sizes SM–3XL
$11$24.99
56% off
56% offRuby Love
Women's Period Underwear - Bikini | Sapphire
Sizes SM–3XL
$11$24.99
56% offRuby Love
Women's Period Underwear - Bikini | Latte
Sizes SM–3XL
$11$24.99
56% offRuby Love
Women's Period Underwear - Bikini | Cream
Sizes SM–3XL
$11$24.99
56% offRuby Love
Women's Period Underwear - Bikini | Black
Sizes SM–8XL
$11$24.99
56% offRuby Love
Women's Period Underwear - Bikini | Classic Ruby
Sizes SM–3XL
$11$24.99
13% off
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18% offOther cuts
Cut sorted - now match the capacity
You know you want a bikini. Tell the translator your flow and it picks the covering tier, so you can match cut and capacity at once.