---
title: "Swimming Costume Women — £413K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/fashion/swimming-costume-women"
last_updated: "2026-07-31T07:25:04.427Z"
locale: en
meta:
description: "Niche score 61/100 · £413K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 61/100 · £413K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Swimming Costume Women — £413K/yr Amazon UK Niche (2026) - Flapen"
---
# **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**
**Incredible****11%**
top-5 click share — an open shelf
**Brand share**
**Incredible****36%**
top-5 brand share — no brand owns this niche
**Avg price**
**Great****£17.44**
avg listing price — sweet spot $15–$100
**Quality gap**
**Great****4.3★**
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**
**Okay****1,776.97**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Bad****8.7%**
return rate — above 5% kills the launch gate
**Conversion**
**Bad****0.4%**
search→purchase rate — share of searches ending in a sale
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=uk&signal=no_dominant_brand "Top brand's click share < 20%") [** High Returns**](https://flapen.com/research/niches?market=uk&signal=high_returns "Return rate > 5%")
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 ~~](https://flapen.com/research/methodology)
## **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 '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jul, Aug · busiest ÷ quietest = 2.8×
[**Open Trend **](https://flapen.com/research/uk/fashion/swimming-costume-women/trend)
## **Top swimming costume women search terms**
- **swimming costume women**1.6M/yr+23.4%0.2% conv. - **tankini sets for women uk**558K/yr+109.1%0.2% conv. - **swimsuits for women**371K/yr+32.2%0.2% conv. - **womens swimwear**299K/yr+49.5%0.0% conv. - **womens swimming costumes**299K/yr+6.2%0.3% conv. - **swimsuit**246K/yr+43.1%0.1% conv. - **tummy control swimwear**186K/yr+70.3%0.3% conv. - **plus size swimwear for women**181K/yr+98.9%0.1% conv. - **speedo swimsuit ladies**259K/yr-1.4%0.4% conv. - **modest swimwear women**159K/yr+107.1%0.1% conv. [**All search terms **](https://flapen.com/research/uk/fashion/swimming-costume-women/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 moatMarket 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.
### **Top sellers**
by 90-day click share
[1**Amazon Essentials Womens Square-Neck One-Piece Swimming Costume Olive 10**Amazon Essentials**£13.43**4.2★37 rev](https://www.amazon.co.uk/dp/B0FJS9GQ29) [2**Speedo Womens Endurance+ Medalist | Athletic Fit | ClaSic Design| Chlorine Resistant | Extra Flexibility Black 3838**Speedo**£16.10**4.4★4,827 rev](https://www.amazon.co.uk/dp/B094DRZ88R) [3**MLPKOI One Piece Tummy Control Swimwear Womens One Piece Swimsuits UK Swimming Costume Tummy Control Swimsuit Ruched Padded Swimwear Swimsuit V Neck Sexy Bathing Suit Slimming Swimming Costume**MLPKOI**£9.78**4.0★257 rev](https://www.amazon.co.uk/dp/B0FHW9J152) [4**Zoggs Sandon Scoopback Swimming Costume Women (Navy 38-inch / 14 UK) Swimwear One Piece Fixed Foam Cups Medium Leg Swim Suit with Tummy Control Swimsuits for Ladies**Zoggs**£29.82**4.2★1,651 rev](https://www.amazon.co.uk/dp/B0CDCF3DRK) [5**Dreaku Womens One Piece Swimsuit Tummy Control Swimming Costume Push Up Ladies Swimwear Monokini with Removable Pads Scoop Back Round Neck Bathing Suits (UK Alpha S Regular Regular Black)**Dreaku**£10.56**4.4★26 rev](https://www.amazon.co.uk/dp/B0GTQN6JX2)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Dreaku Womens One Piece Swimsuit Tummy Control Swimming Costume Push Up Ladies Swimwear Monokini with Removable Pads Scoop Back Round Neck Bathing Suits (UK Alpha S Regular Regular Black)**Dreaku**£10.56**26 rev5mo ago](https://www.amazon.co.uk/dp/B0GTQN6JX2) [**Amazon Essentials Womens Square-Neck One-Piece Swimming Costume Olive 10**Amazon Essentials**£13.43**37 rev5mo ago](https://www.amazon.co.uk/dp/B0FJS9GQ29) [**Amazon Essentials Womens Square-Neck One-Piece Swimming Costume Navy 16**Amazon Essentials**£17.70**37 rev5mo ago](https://www.amazon.co.uk/dp/B0FJS76K7N) [**Zidoley Womens Swim Dress One Piece Tummy Control Swimsuit with Skirt Sleeveless Ruffle Swimwear Modest Slimming Swimming Costume for Women UK (UK Alpha XL Regular Regular) Black**Zidoley**£11.60**43 rev6mo ago](https://www.amazon.co.uk/dp/B0GGQBCJFW) [**Hanna Nikole Tummy Control Swimsuit Swimming Costume Women Sport Tankini Sets 2 Piece Modest Swimwear Color Block Tankini Top with High Waist Buit in Bottom Swim Trunks Bathing Suit with Pockets**Hanna Nikole**£22.66**222 rev7mo ago](https://www.amazon.co.uk/dp/B0G442Y2G5)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Amazon Essentials Womens Square-Neck One-Piece Swimming Costume Navy 16**Amazon Essentials**£17.70**4.2★**▲ 31%**](https://www.amazon.co.uk/dp/B0FJS76K7N) [**Amazon Essentials Womens One-Piece Coverage Swimsuit (Available in Plus Size) Bright Red Multi Folk Floral 20**Amazon Essentials**£6.48**4.2★**▲ 31%**](https://www.amazon.co.uk/dp/B0DFBBDXQ2) [**Amazon Essentials Womens Square-Neck One-Piece Swimming Costume Olive 10**Amazon Essentials**£13.43**4.2★**▲ 31%**](https://www.amazon.co.uk/dp/B0FJS9GQ29) [**Zidoley Womens Swim Dress One Piece Tummy Control Swimsuit with Skirt Sleeveless Ruffle Swimwear Modest Slimming Swimming Costume for Women UK (UK Alpha XL Regular Regular) Black**Zidoley**£11.60**4.1★**▲ 30%**](https://www.amazon.co.uk/dp/B0GGQBCJFW) [**Dreaku Womens One Piece Swimsuit Tummy Control Swimming Costume Push Up Ladies Swimwear Monokini with Removable Pads Scoop Back Round Neck Bathing Suits (UK Alpha S Regular Regular Black)**Dreaku**£10.56**4.4★**▲ 30%**](https://www.amazon.co.uk/dp/B0GTQN6JX2)
**~~View all trending →~~**
## **What buyers say about swimming costume women**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**37%
*“A lovely fit and flattering”*
**Quality-Overall**11%
*“it looks well made”*
**Comfort-Overall**10%
*“Very comfortable”*
**Shape/Style**8%
*“Very flattering”*
**Value For Money**5%
*“Good for the price”*
**Material Quality**4%
*“Good material”*
**Advertised Vs Actual Product**3%
*“Exactly what I needed”*
**Color**2%
*“the colour is accurate”*
**Design-Overall**2%
*“The design is pretty simple”*
**Chest Fit**1%
*“The chest area has removable pads”*
### **What buyers complain about **
**Size-Overall**34%
*“Comes up very small”*
**Quality-Overall**7%
*“Totally different quality to the blue”*
**Chest Fit**5%
*“on small size across bust”*
**Comfort-Overall**4%
*“feeling so uncomfortable”*
**Material Quality**4%
*“the material was a bit thin”*
**Thigh Fit**2%
*“Unfortunately the ride up between my thighs”*
**Thin**2%
*“Material very thin”*
**Durability**2%
*“one broke early”*
**Stretchability/Expandability/Elasticity**2%
*“doesn't stretch much”*
**Strap/String Quality**2%
*“Straps are a little wide for sunbathing so at times I just put a strappy top on”*
### **Top return reasons **
**Size-Overall**68%
**Chest Fit**6%
**Length**4%
**Shape/Style**3%
**Material Quality**2%
**Quality-Overall**2%
**Color**2%
**Waist Fit**1%
**Advertised Vs Actual Product**1%
**Thin**1%
## **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.
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