Period Swimwear
Period Swimwear shows demand growing +171.4% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Flapen Score
Is Period Swimwear profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Period Swimwear is a £178K/yr Amazon United Kingdom market (750K searches/yr). The top 5 brands hold 56% of demand. Demand peaks in Jun–Jul–Aug. Verdict: Worth a look — 67/100.
Period Swimwear: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Worth a look. Search demand moved +171.4% over the last 90 days and 1.5% of searches end in a purchase.
£178K
revenue / yr
Who owns the niche?
The top 5 brands hold 56% of demand, so 44% of the market is open.
44%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.3★ — the gap to enter on.
0/100
page quality · 94 products
Top Period Swimwear products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
ZVZK Period Pants Heavy Flow 30ML Absorbent Women Leak Proof Panty Period Knickers Menstrual Underwear 3 Pack (M Pack of 3)
- Price
- £13.56
- Rating
- 4.2/5
- Reviews
- 3,582
- Age
- 4y ago
OVRUNS Period Bikini Bottoms Low Waisted Leakproof Swimwear Waterproof Menstrual Swim Short for Teens Girls Women Black II XS
- Price
- £11.13
- Rating
- 4.5/5
- Reviews
- 711
- Age
- 3y ago
JiaYouLC Period Swimwear for Girls Teens Women Leakproof Menstrual Bikini Pants for Swimming Period Swim Bottoms (UK Numeric 6 8 Regular Regular Black-Basic)
- Price
- £6.00
- Rating
- 4.3/5
- Reviews
- 102
- Age
- 1y ago
OVRUNS Period Bikini Bottoms Low Waisted Leakproof Swimwear Waterproof Menstrual Swim Short for Teens Girls Women Black II S
- Price
- £11.00
- Rating
- 4.5/5
- Reviews
- 711
- Age
- 3y ago
WUDEUI Period Bikini Sets for Women 2PCS V Neck High Waisted Tummy Control 4Ply Leakproof Ruched Drawstring Swimwear for Ladies
- Price
- £15.56
- Rating
- 4.2/5
- Reviews
- 22
- Age
- 6mo ago
Trending
90-day click momentum
FLADY Period Swimwear for Girls & Women Black Swimming Costume Women Leakproof Racerback Black Swimsuit with Built-in Menstrual Protection Teen Heavy Flow (UK Alpha S Regular Regular Black)
- Price
- £25.04
- Rating
- 4.5/5
- Reviews
- 31
- Age
- 5mo ago
WUDEUI Period Bikini Sets for Women 2PCS V Neck High Waisted Tummy Control 4Ply Leakproof Ruched Drawstring Swimwear for Ladies
- Price
- £15.56
- Rating
- 4.2/5
- Reviews
- 22
- Age
- 6mo ago
WUKA Teen Period Swimwear Bikini Bottom Leak Proof Reusable Period Bikini Brief Light Flow Swim Pants for Girls Size XS Black
- Price
- £17.73
- Rating
- 4.8/5
- Reviews
- 26
- Age
- 10mo ago
FLADY Period Swimwear for Girls & Women Black Swimming Costume Women Leakproof Racerback Black Swimsuit with Built-in Menstrual Protection Teen Heavy Flow (UK Alpha M Regular Regular Black)
- Price
- £24.73
- Rating
- 4.5/5
- Reviews
- 31
- Age
- 5mo ago
WUKA Period Swimwear Bikini Bottom Light Flow Leak Proof Reusable Washable Period Swimwear for Women Bikini Brief Size S Black
- Price
- £17.89
- Rating
- 4.5/5
- Reviews
- 30
- Age
- 10mo ago
Newest
by launch dateFLADY Period Swimwear for Girls & Women Black Swimming Costume Women Leakproof Racerback Black Swimsuit with Built-in Menstrual Protection Teen Heavy Flow (UK Alpha S Regular Regular Black)
- Price
- £25.04
- Rating
- 4.5/5
- Reviews
- 31
- Age
- 5mo ago
FLADY Period Swimwear for Girls & Women Black Swimming Costume Women Leakproof Racerback Black Swimsuit with Built-in Menstrual Protection Teen Heavy Flow (UK Alpha M Regular Regular Black)
- Price
- £24.73
- Rating
- 4.5/5
- Reviews
- 31
- Age
- 5mo ago
WUDEUI Period Bikini Sets for Women 2PCS V Neck High Waisted Tummy Control 4Ply Leakproof Ruched Drawstring Swimwear for Ladies
- Price
- £15.56
- Rating
- 4.2/5
- Reviews
- 22
- Age
- 6mo ago
Period Pants Swimwear for Women High Waisted 4Ply Leakproof Bikini Shorts Bottoms Built in Briefs and Drawstring Menstrual Swim Shorts for Girls Teens Black
- Price
- £11.40
- Rating
- 4.0/5
- Reviews
- 26
- Age
- 8mo ago
WUKA Teen Period Swimwear Bikini Bottom Leak Proof Reusable Period Bikini Brief Light Flow Swim Pants for Girls Size S Black
- Price
- £17.79
- Rating
- 4.8/5
- Reviews
- 26
- Age
- 10mo ago
Competition: brands, sellers & click share
Clicks spread well past the top 5 (24% combined) — an open shelf where new products get seen.
Brands
21 falling
Sellers
33
Top-5 brand share
56%
Top 20: 100%
Top-5 click share
24%
Top 20: 56%
Open market
38%
- Leovqn15%
- OVRUNS12%
- Modibodi11%
- ZVZK10%
- Runmeihe9%
- WUDEUI7%
Period Swimwear demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Peak months: Jun, Jul, Aug · busiest ÷ quietest = 11.1×
Top Period Swimwear search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- period swimwear373K/yr
- period swimwear for teens108K/yr
- period swimwear for women57K/yr
- period bikini bottoms28K/yr
- teenage period swimwear10K/yr
- teen period swimwear20K/yr
- period swimwear for girls30K/yr
- period swimming costume17K/yr
- period bikini10K/yr
- period swimsuit14K/yr
What reviews say buyers love and hate about Period Swimwear
What buyers mention most, as a share of all reviews.
What buyers love
72% of reviews“The fit is really flattering”
“they work very well”
“Theyre really comfortable”
“As described”
“Its a nice stylish costume”
What buyers complain about
52% of reviews“Fit wasnt great”
“somewhat expensive for what it is”
“Poor Quality”
“slightly uncomfortable”
“It not waterproof at all”
Period Swimwear return rate & reasons
Why buyers send it back, as a share of all return requests.
3.4%
Return rate
89%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common Period Swimwear questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
