Period Swimwear
PassPeriod Swimwear scores 67 out of 100, a Pass. Shoppers spend an estimated $178K a year here, search demand grew +171.4% this quarter, and an estimated 3.4% of orders come back.
- Flapen Score
- 67 / 100Top 2% of 2,461 Fashion niches · +19 vs the category median of 4867
- Market size
- £178K/yr750K searches / yr
- 90-day growth
- +171.4%search demand this quarter
- Competition
- 24%top-5 click share · 21 brands · 33 sellers
Flapen Score
Period Swimwear against its category
The dotted line is the Fashion average. Past it, Period Swimwear is stronger. Inside it, weaker.
Market
The Period Swimwear market on Amazon at a glance
Shoppers on Amazon United Kingdom searched for Period Swimwear 750K times last year and spent an estimated £178K. The top 5 brands take 56% of clicks. Demand peaks in Jun–Jul–Aug. Flapen scores it 67 out of 100, a Pass.
01 · Demand
An estimated 1.5% of those searches ended in a purchase.
Shoppers searched for this 750K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 1.5% of those searches ended in a purchase. Searches in the last 90 days moved +171.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated £178K a year.
- Searches, last 12 months
- 750K
- Growth, 90 days vs prior 90
- +171.4%
- Conversion, latest week
- 1.5%
- Market size, estimated
- £178Ka year
- Peak month
- July11.1× the quietest month
- Top search term
- period swimwear373K searches a year
02 · Price
A sale here is worth £15.80.
Listings sell for £15.80 on average, from £5.66 to £46.42. Amazon reports units sold in ranges. This niche sold 10K to 13K a year. The average listing sells 100 to 250 of them. At £15.80 that is £2K to £4K a year per listing.
- Average price
- £15.80inside the $15 to $100 sweet spot
- Price range
- £5.66–£46.42
- Amazon United Kingdom median price
- £12.12across 27,606 niches
- Units sold a year
- 10K–13K
- Units per listing a year
- 100–250
- Revenue per listing a year
- £2K–£4K
- Returns
- 3.4%of orders · Amazon United Kingdom median 0.6%
03 · Entry bar
The bar here is ads.
90% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 2.2% of listings are out of stock. The average listing ranks #109 within Girls. It carries 503 reviews at 4.31 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 90%
- Prime listings
- 100%
- Out of stock, average day
- 2.2%
- Average rank
- #109in Girls
- Average rating
- 4.31 starsAmazon United Kingdom average 4.36 stars
- Average reviews
- 503per listing
- Listings tracked
- 94
04 · Newcomers
0 of last year's 24 launches cleared the first-year sales bar.
24 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 30 months on average, so a newcomer is not facing entrenched names.
- Launched, last 12 months
- 24
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 30 months
Products
Top Period Swimwear products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 23, 2026. The live listing can differ.
Top sellers
by estimated 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
estimated 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 date
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

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
Competition: brands, sellers & click share
The top 5 products take an estimated 24% of clicks, no more. An open shelf where new products get seen.
Brands
21 falling
Sellers
33
Est. top-5 brand share
56%
Top 20: 100%
Est. top-5 click share
24%
Top 20: 56%
Open market
38%
- Leovqn15%
- OVRUNS12%
- Modibodi11%
- ZVZK10%
- Runmeihe9%
- WUDEUI7%
Demand
Period Swimwear search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jun, Jul, Aug · busiest ÷ quietest = 11.1×
Search terms
Top Period Swimwear search terms shoppers use
The exact words shoppers type, with estimated 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
Reviews and returns
What reviews say buyers love and hate about Period Swimwear
We read the reviews and the return reasons for every product selling here.
“Fit wasnt great”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
19 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Period Swimwear questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









