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61

swimming costume women

Worth a look

Shows a fragmented shelf (top 5 take 11% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 56Growth 63Conversion 6Competition 97Returns 12Price range 65Avg price 81Brand share 96Review moat 47Quality gap 75

Competition

Incredible11%

top-5 click share — an open shelf

Brand share

Incredible36%

top-5 brand share — no brand owns this niche

Avg price

Great£17.44

avg listing price — sweet spot $15–$100

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Price range

Good£4.75–£34.34

cheapest to priciest tracked listing — scored on the share inside $15–$100

Growth

Good+40.7%

90-day search growth — must beat 0% to launch

Market size

Good£413K

£413K/yr · 5.3M searches

Review moat

Okay1,776.97

avg incumbent reviews — the moat a new listing must climb

Returns

Bad8.7%

return rate — above 5% kills the launch gate

Conversion

Bad0.4%

search→purchase rate — share of searches ending in a sale

According to Flapen's Amazon United Kingdom niche tracking, swimming costume women is a £413K/yr Amazon United Kingdom market (5.3M searches/yr). The top 5 brands hold 36% of demand. Demand peaks in Jul–Aug. Verdict: Worth a look — 61/100.

Data updated Jul 23, 2026 · scored weekly · How we score niches

swimming costume women market data

Units sold / yr
20K–25K
avg 100–250/product
Revenue / yr
£349K–£436K
units × avg price
Conversion rate
0.4%
Avg BSR
#110
Page quality
0%
Prime
99%
Sponsored
89%
Out of stock
2.9%
Avg brand age
39 months
Avg seller age
177 days

Competition & brand share

Clicks spread well past the top 5 (11% combined) — an open shelf where new products get seen.

Brands

72 falling

Sellers

129

Top-5 brand share

36%

Top 20: 77%

Top-5 click share

11%

Top 20: 29%

Open market

62%

  • Speedo9%
  • Amazon Essentials8%
  • RXRXCOCO6%
  • Hanna Nikole5%
  • DOULAFASS5%
  • Zoggs4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +40.7% search growth over the last 90 days.
200K150KSpike '25Prime Day '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

Peak months: Jul, Aug · busiest ÷ quietest = 2.8×

Top swimming costume women search terms

  • swimming costume women1.6M/yr
  • tankini sets for women uk558K/yr
  • swimsuits for women371K/yr
  • womens swimwear299K/yr
  • womens swimming costumes299K/yr
  • swimsuit246K/yr
  • tummy control swimwear186K/yr
  • plus size swimwear for women181K/yr
  • speedo swimsuit ladies259K/yr
  • modest swimwear women159K/yr
All search terms

Top swimming costume women products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%1%£4K2%£8K3%£12K4%£17K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about swimming costume women

What buyers praise and complain about, mined from review topics.

What buyers love

Size-Overall37%

“A lovely fit and flattering”

Quality-Overall11%

“it looks well made”

Comfort-Overall10%

“Very comfortable”

Shape/Style8%

“Very flattering”

Value For Money5%

“Good for the price”

Material Quality4%

“Good material”

Advertised Vs Actual Product3%

“Exactly what I needed”

Color2%

“the colour is accurate”

Design-Overall2%

“The design is pretty simple”

Chest Fit1%

“The chest area has removable pads”

What buyers complain about

Size-Overall34%

“Comes up very small”

Quality-Overall7%

“Totally different quality to the blue”

Chest Fit5%

“on small size across bust”

Comfort-Overall4%

“feeling so uncomfortable”

Material Quality4%

“the material was a bit thin”

Thigh Fit2%

“Unfortunately the ride up between my thighs”

Thin2%

“Material very thin”

Durability2%

“one broke early”

Stretchability/Expandability/Elasticity2%

“doesn't stretch much”

Strap/String Quality2%

“Straps are a little wide for sunbathing so at times I just put a strappy top on”

Top return reasons

Size-Overall68%
Chest Fit6%
Length4%
Shape/Style3%
Material Quality2%
Quality-Overall2%
Color2%
Waist Fit1%
Advertised Vs Actual Product1%
Thin1%

Common questions

Is swimming costume women profitable to sell on Amazon United Kingdom?
The niche generates £413K/yr across 260 tracked products. 6 of 91 products launched in the last 360 days are still selling. 90-day search growth is +40.7%. Flapen's verdict: Worth a look (61/100).
How competitive is the swimming costume women niche?
72 brands and 129 sellers compete. The top 5 products take 11% of clicks and top 5 brands hold 36% of demand.
What do buyers complain about in swimming costume women?
Top complaints mined from reviews: Size-Overall, Quality-Overall, Chest Fit. The return rate is 8.7% — above our launch gate.
When does demand for swimming costume women peak?
Demand peaks in Jul–Aug; the busiest month runs 2.8× the quietest.
What does it cost to enter the swimming costume women niche?
Listings span £4.75–£34.34; the average listing price is £17.44 (sweet spot $15–$100). The average incumbent carries 1,777 reviews — the moat a new listing must climb.