girls swimming costume
Worth a lookShows a fragmented shelf (top 5 take 19% of clicks), but weak search conversion (0.9%) keeps it on the watch list.
Competition
Incredible19%top-5 click share — an open shelf
Brand share
Great58%top-5 brand share — no brand owns this niche
Review moat
Good635.66avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Price range
Good£5.71–£24.70cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay£11.76avg listing price — sweet spot $15–$100
Growth
Okay+12.6%90-day search growth — must beat 0% to launch
Market size
Okay£122K£122K/yr · 1.2M searches
Returns
Bad5.5%return rate — above 5% kills the launch gate
Conversion
Bad0.9%search→purchase rate — share of searches ending in a sale
According to Flapen's Amazon United Kingdom niche tracking, girls swimming costume is a £122K/yr Amazon United Kingdom market (1.2M searches/yr). The top 5 brands hold 58% of demand. Demand peaks in Jan. Verdict: Worth a look — 50/100.
Data updated Jul 23, 2026 · scored weekly · How we score niches
girls swimming costume market data
- Units sold / yr
- 10K–13K
- avg 100–250/product
- Revenue / yr
- £118K–£147K
- units × avg price
- Conversion rate
- 0.9%
- Avg BSR
- #60
- Page quality
- 0%
- Prime
- 99%
- Sponsored
- 93%
- Out of stock
- 2.7%
- Avg brand age
- 36 months
- Avg seller age
- 177 days
Competition & brand share
Clicks spread well past the top 5 (19% combined) — an open shelf where new products get seen.Brands
33 rising
Sellers
75
Top-5 brand share
58%
Top 20: 94%
Top-5 click share
19%
Top 20: 44%
Open market
37%
- Speedo19%
- Ewbob13%
- FishingDino12%
- Amazon Essentials9%
- InfiniZer5%
- XiaoMoSha5%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +12.6% search growth over the last 90 days.Peak months: Jan · busiest ÷ quietest = 2.1×
Top girls swimming costume search terms
- girls swimming costume392K/yr
- swimming costume girls279K/yr
- kids swimming costume78K/yr
- girls swimsuit52K/yr
- swimsuit girls41K/yr
- speedo swimsuit girls59K/yr
- swimming suit for girls33K/yr
- girls swimming costumes one piece24K/yr
- swim suit kids20K/yr
- girls swimming costume age 12-1321K/yr
Top girls swimming costume 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Amazon Essentials Girls Quick-Dry Cross Back One-Piece Swimming Costume with 4-Way Stretch Blue Ditsy Floral 10 Years
Amazon Essentials£12.774.2★78 rev
Ewbob Girls One Piece Swimsuit Quick Dry Swimwear Swimming Costume Beach Bathing Suit for Kids(C3-005)-Purple-9-10Y
Ewbob£11.914.5★599 rev
Speedo Girls Endurance+ Medalist Swimsuit | Chlorine Resistance | Comfort Fit | SwiMing LeSons | Swim Holiday Black 11-1211-12
Speedo£8.764.5★4,944 rev
Okdance Swimming Costume for Boys Girls One-Piece Kids Swimsuit Short Sleeve Swimming Costume for Summer Surfing Swimming Water Sports Boy Girl (UK Age 9 Years 11 Years Regular Pink)
Okdance£9.204.2★95 rev
Speedo Girls Endurance+ Legsuit Swimsuit | Chlorine Resistance | Comfort Fit | SwiMing LeSons | Swim Holiday Black 13-1413-14
Speedo£15.384.6★379 rev
Newest
by launch dateAmazon Essentials Girls Quick-Dry Cross Back One-Piece Swimming Costume with 4-Way Stretch Blue Ditsy Floral 10 Years
Amazon Essentials£12.7778 rev
Amazon Essentials Girls Quick-Dry Cross Back One-Piece Swimming Costume with 4-Way Stretch Pink Tomato Red Strawberries 3 Years
Amazon Essentials£11.1878 rev
Okdance Swimming Costume for Boys Girls One-Piece Kids Swimsuit Short Sleeve Swimming Costume for Summer Surfing Swimming Water Sports Boy Girl (UK Age 9 Years 11 Years Regular Pink)
Okdance£9.2095 rev
XiaoMoSha Swimming Costume Girls One Piece Bathing Suit with Adjustable Straps Color Contrast Trim for Teens Girls 13-14 Years Dark Blue
XiaoMoSha£11.2068 rev
XiaoMoSha Swimming Costume Girls One Piece Bathing Suit with Adjustable Straps Color Contrast Trim for Teens Girls 12-13 Years Black
XiaoMoSha£12.7968 rev
Trending
90-day click momentumAmazon Essentials Girls Quick-Dry Cross Back One-Piece Swimming Costume with 4-Way Stretch Blue Ditsy Floral 10 Years
Amazon Essentials£12.774.2★
Girls Swimming Costume Padded Bras 7-15 Years Two Piece Drawstring Halterneck Girls Tankini Swimsuit with Boy Shorts Kids Bathing Suit Grey Blue Trees 11-12 Years
FishingDino£13.994.5★
Girls Swimming Costume Padded Bras 7-15 Years Two Piece Drawstring Halterneck Girls Tankini Swimsuit with Boy Shorts Kids Bathing Suit Black Trees 13-14 Years
FishingDino£11.414.5★
XiaoMoSha Swimming Costume Girls One Piece Bathing Suit with Adjustable Straps Color Contrast Trim for Teens Girls 12-13 Years Black
XiaoMoSha£12.794.6★
Amazon Essentials Girls Quick-Dry Cross Back One-Piece Swimming Costume with 4-Way Stretch Pink Tomato Red Strawberries 3 Years
Amazon Essentials£11.184.2★
What buyers say about girls swimming costume
What buyers praise and complain about, mined from review topics.What buyers love
“True to size”
“Good quality”
“Very comfortable”
“such lively vibrant colours”
“Good value for money”
“The material is comfortable and waterproof, as one would hope”
“Perfect for swimming lessons, beach trips, pool days, and sports swimming”
“True to picture”
“Stylish”
“Durable”
What buyers complain about
“Too tight”
“Split open”
“This is something I would pay £2 for”
“The material is so cheap it is all wrinkle together and just awful”
“the hygiene label that was we pulled off left an awful sticky residue that I could not get off”
“Zip busted”
“Almost see-through”
“the picture doesnt do it justice”
“my daughter thought it was a little low at the front even after adjusting the straps”
“would stretch over time”
Top return reasons
Common questions
- Is girls swimming costume profitable to sell on Amazon United Kingdom?
- The niche generates £122K/yr across 128 tracked products. 0 of 60 products launched in the last 360 days are still selling. 90-day search growth is +12.6%. Flapen's verdict: Worth a look (50/100).
- How competitive is the girls swimming costume niche?
- 33 brands and 75 sellers compete. The top 5 products take 19% of clicks and top 5 brands hold 58% of demand.
- What do buyers complain about in girls swimming costume?
- Top complaints mined from reviews: Size-Overall, Durability, Value For Money. The return rate is 5.5% — above our launch gate.
- When does demand for girls swimming costume peak?
- Demand peaks in Jan; the busiest month runs 2.1× the quietest.
- What does it cost to enter the girls swimming costume niche?
- Listings span £5.71–£24.70; the average listing price is £11.76 (sweet spot $15–$100). The average incumbent carries 636 reviews — the moat a new listing must climb.