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Period Swimwear

Pass

Period Swimwear scores 67 out of 100, a Pass. Shoppers spend $178K a year here, search demand grew +171.4% this quarter, and returns run at 3.4% of orders.

Flapen Score
67
67 / 100
Top 2% of 2,461 Fashion niches · +19 vs the category median of 48
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.

67Pass
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

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

1.5% of searches ended in a purchase last week.

Shoppers searched for this 750K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. In the latest week, 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

Amazon counts 0 of last year's 24 launches as successful.

24 products launched here in the last 12 months. Amazon counts 0 of them as successful launches, new products that hit its first-year sales bar. 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

Every tracked product: its share of the shelf, its reviews, and its price.

Competition

Competition: brands, sellers & click share

The top 5 products take only 24% of clicks. An open shelf where new products get seen.

£0£4K£7K£11K£14K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

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%

Demand

Period Swimwear search demand

Weekly searches over the year, seasonality beneath. Pick a range.

45K35KSpike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jun, Jul, Aug · busiest ÷ quietest = 11.1×

Search terms

Top Period Swimwear search terms shoppers use

The exact words 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

Reviews and returns

What reviews say buyers love and hate about Period Swimwear

What buyers praise, what they complain about and why they send it back, from the reviews.

Complain

Size-Overall21%−0.25

Fit wasnt great

The sizing is very large

Very small size

Value For Money5%−0.05

somewhat expensive for what it is

this is probably on the more expensive side

Waste of money

Quality-Overall5%+0.73

Poor Quality

Not impressed with the quality or fit

The overall quality

Comfort-Overall5%+1.05

slightly uncomfortable

This is uncomfortable to wear

still dont feel comfortable wearing

Water Resistance4%

It not waterproof at all

it does mostly soak everything up

However, Im not sure how much I would trust them on a heavier day as as soon as you go into the water you can feel the absorbent part completely fill up and then when you get out the pool you can feel that its full of water and it drips out again

Love

Size-Overall17%−0.25

The fit is really flattering

The product fits to size

Fit well

Quality-Overall16%+0.73

they work very well

Overall, a really well-made product that does exactly what its meant to do

Excellent product

Comfort-Overall12%+1.05

Theyre really comfortable

Comfortable to wear

it stayed comfortable the whole time

Advertised Vs Actual Product5%+0.47

As described

Does the job perfectly

its done exactly what I needed

Shape/Style5%+0.24

Its a nice stylish costume

flattering

The overall look is stylish

Return

3.4% Return rate 89% Fixable by listing

Size-Overall77%███▇██

Fit wasnt great

The sizing is very large

Very small size

Length3%▁▁▅█▇▃
Quality-Overall2%▄▄▄▄█▃

Poor Quality

Not impressed with the quality or fit

The overall quality

Material Quality2%▁▇▄▄▂█

Avoid - Very cheap fabric

Horrible material, looks like a nappy

Thin2%█▃▂▂▂▂

FAQ

Common Period Swimwear questions

Answered from the same tracked data.