---
title: "Boys Swimming Trunks — £101K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/fashion/boys-swimming-trunks"
last_updated: "2026-07-31T13:51:25.338Z"
locale: en
meta:
description: "Niche score 49/100 · £101K/yr market · 536K searches/yr · £10.25 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 49/100 · £101K/yr market · 536K searches/yr · £10.25 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Boys Swimming Trunks — £101K/yr Amazon UK Niche (2026) - Flapen"
---
# **boys swimming trunks**
**Skip it**
Weak search conversion (1.8%) — this niche doesn't clear our bar today.
Market size 25Growth 56Conversion 23Competition 87Returns 35Price range 34Avg price 35Brand share 74Review moat 69Quality gap 38
**Competition**
**Great****28%**
top-5 click share — an open shelf
**Brand share**
**Good****60%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Good****732.84**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Good****+29.0%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Returns**
**Okay****4.2%**
return rate — above 5% kills the launch gate
**Avg price**
**Okay****£10.25**
avg listing price — sweet spot $15–$100
**Price range**
**Okay****£4.71–£20.30**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Okay****£101K**
£101K/yr · 536K searches
**Conversion**
**Bad****1.8%**
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%")
According to Flapen's Amazon United Kingdom niche tracking, boys swimming trunks is a £101K/yr Amazon United Kingdom market (536K searches/yr). The top 5 brands hold 60% of demand. Demand peaks in Jul–Aug. Verdict: Skip it — 49/100.
Data updated Jul 23, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **boys swimming trunks market data**
- **Units sold / yr**
- **10K–13K**
- avg 0–100/product
- **Revenue / yr**
- **£103K–£128K**
- units × avg price
- **Conversion rate**
- **1.8%**
- **Avg BSR**
- **#24**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **95%**
- **Out of stock**
- **2.1%**
- **Avg brand age**
- **35 months**
- **Avg seller age**
- **173 days**
## **Competition & brand share**
Clicks spread well past the top 5 (28% combined) — an open shelf where new products get seen.
**Brands**
**27 **▼falling
**Sellers**
**58**
**Top-5 brand share**
**60%**
Top 20: 96%
**Top-5 click share**
**28%**
Top 20: 58%
**Open market**
**35%**
- RIPT18% - maamgic17% - Speedo10% - TRAMLE9% - MEILONGER8% - GENTABY5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +29.0% search growth over the last 90 days.
20K15KSpike '24Spike '25Prime Day '25Spike '26Prime Day '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jul, Aug · busiest ÷ quietest = 2.8×
[**Open Trend **](https://flapen.com/research/uk/fashion/boys-swimming-trunks/trend)
## **Top boys swimming trunks search terms**
- **boys swimming shorts**186K/yr+37.4%1.4% conv. - **boys swim shorts**57K/yr+43.4%0.9% conv. - **boys swimming trunks**68K/yr-7.9%1.1% conv. - **swim shorts boys**39K/yr+42.3%1.0% conv. - **swimming trunks boys**33K/yr+24.9%1.1% conv. - **swimming shorts boys 13-14**16K/yr+23.0%2.5% conv. - **swimming shorts boys**18K/yr+27.8%1.4% conv. - **boys swim trunks**15K/yr+35.6%0.5% conv. - **swim trunks boys**13K/yr+28.0%0.6% conv. - **kids swim shorts**11K/yr+65.5%1.1% conv. [**All search terms **](https://flapen.com/research/uk/fashion/boys-swimming-trunks/search-terms)
## **Top boys swimming trunks 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%3%£3K6%£6K9%£9K12%£12K101001K10K 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**maamgic Little Boys Swimming Shorts Beach Trunk Toddler Swim Shorts Boardshorts Lightweight Beach Shorts Adjustable Waist All Age Fish-Navy Blue 4 Years**maamgic**£11.19**4.6★3,444 rev](https://www.amazon.co.uk/dp/B07FJXDTM7) [2**maamgic Boys Swimming Shorts for 2T-16 Years Stretchy Quick Dry Boys Swim Trunks Anti Chafe Boxer Brief Swimsuits with Pockets**maamgic**£15.26**4.5★614 rev](https://www.amazon.co.uk/dp/B0D8991YZ2) [3**RIPT Boys Swim Shorts Quick Dry Board Shorts with Mesh Lining Drawstring Waist UV 50 Sun Protection Surfing Swimming Trunks (Red 11-12 Years)**RIPT**£7.11**4.6★2,468 rev](https://www.amazon.co.uk/dp/B0C3MCZ1F2) [4**GENTABY Boys Beach Shorts Kids Swimming Trunks with Mesh Lining Toddler Board Quick Dry Funny Printed Blue Shorts for 13-14 Years**GENTABY**£6.60**4.5★73 rev](https://www.amazon.co.uk/dp/B0D5HGM87R) [5**MEILONGER Boys Swimming Shorts with Liner Swim Trunks for Teen Quick Dry Board Shorts Kids 5-inch(Black 13-14)**MEILONGER**£10.60**3.9★39 rev](https://www.amazon.co.uk/dp/B0FKRN3BRJ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**TEMIRA Boys Swimming Trunks Kids Toddler Drawstring Board Shorts Blue 8-9**TEMIRA**£7.87**10 rev5mo ago](https://www.amazon.co.uk/dp/B0GK2QR6JY) [**TRAMLE Boys Swimming Shorts Quick Dry Board Trunks Casual Walking Sports Beach Shorts for Kids Toddler 7-8 Years Black**TRAMLE**£8.55**55 rev9mo ago](https://www.amazon.co.uk/dp/B0FX9H4CQQ) [**MEILONGER Boys Swimming Shorts with Liner Swim Trunks for Teen Quick Dry Board Shorts Kids 5-inch(Black 13-14)**MEILONGER**£10.60**39 rev11mo ago](https://www.amazon.co.uk/dp/B0FKRN3BRJ) [**TRAMLE Boys Swimming Trunks Kids Beach Shorts with Mesh Lining 5-6 Years Toddler Printed Shorts Quick Dry Board Shorts Blue**TRAMLE**£6.91**30 rev1y ago](https://www.amazon.co.uk/dp/B0F938F4Q6) [**Minecraft Boys Swimming Trunks Gaming Swim Shorts Ages 5 to 12 Years Old (UK Age 10 Years 11 Years Regular Multicoloured)**Minecraft**£12.85**71 rev1y ago](https://www.amazon.co.uk/dp/B0F19DRKCC)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Moon Tree Big Boys Swimming Trunks Quick Dry Swim Shorts Kids Board Shorts 13-14 Years/Age 14**Moon Tree**£15.05**4.4★**▲ 55%**](https://www.amazon.co.uk/dp/B0C36CZCGH) [**maamgic Boys Swimming Shorts for 2T-16 Years Stretchy Quick Dry Boys Swim Trunks Anti Chafe Boxer Brief Swimsuits with Pockets**maamgic**£15.26**4.5★**▲ 55%**](https://www.amazon.co.uk/dp/B0D8991YZ2) [**Speedo Boys Endurance+ JaMer SwiMing Trunks | Training | Chlorine Resistant | Quick Drying | Stretch Fabric | Comfort Fit Black 44**Speedo**£7.71**4.6★**▲ 52%**](https://www.amazon.co.uk/dp/B094DSPX6V) [**maamgic Little Boys Swimming Shorts Beach Trunk Toddler Swim Shorts Boardshorts Lightweight Beach Shorts Adjustable Waist All Age Fish-Navy Blue 4 Years**maamgic**£11.19**4.6★**▲ 42%**](https://www.amazon.co.uk/dp/B07FJXDTM7) [**TEMIRA Boys Swimming Trunks Kids Toddler Drawstring Board Shorts Blue 8-9**TEMIRA**£7.87**4.7★**▲ 34%**](https://www.amazon.co.uk/dp/B0GK2QR6JY)
**~~View all trending →~~**
## **What buyers say about boys swimming trunks**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**21%
*“Great quality fur the price”*
**Size-Overall**16%
*“The fit stayed in place well enough that I wasnt constantly checking”*
**Comfort-Overall**11%
*“Very comfortable”*
**Value For Money**11%
*“reasonably priced”*
**Advertised Vs Actual Product**5%
*“As shown”*
**Material Quality**4%
*“The material feels durable”*
**Color**3%
*“The colour looks good”*
**Machine Wash Suitability**3%
*“They are machine washable”*
**Stretchability/Expandability/Elasticity**2%
*“and an elastic waistband”*
**Durability**2%
*“Strong and durable”*
### **What buyers complain about **
**Size-Overall**37%
*“A little oversized”*
**Quality-Overall**16%
*“Cheap and cheerful”*
**Stitch/Finish/Polish**4%
*“The stitching is messy”*
**Stretchability/Expandability/Elasticity**4%
*“The waist elastic was really itchy”*
**Material Quality**2%
*“Very thin material”*
**Durability**2%
*“Within 5 minutes of putting on the metal eyelets around the drawstring had come off causing a cut to the young person wearing them”*
**Length**1%
*“its very long”*
**Ankle Support**1%
*“the shorts were around his ankles much too large”*
**Thickness**1%
*“Very thin material”*
**Color**1%
*“wrong colour”*
### **Top return reasons **
**Size-Overall**82%
**Length**3%
**Waist Fit**3%
**Thigh Fit**2%
**Quality-Overall**2%
**Color**1%
**Material Quality**1%
**Comfort-Overall**1%
**Advertised Vs Actual Product**1%
**Shape/Style**1%
## **Common questions**
- **Is boys swimming trunks profitable to sell on Amazon United Kingdom?**
- The niche generates £101K/yr across 75 tracked products. 1 of 16 products launched in the last 360 days are still selling. 90-day search growth is +29.0%. Flapen's verdict: Skip it (49/100).
- **How competitive is the boys swimming trunks niche?**
- 27 brands and 58 sellers compete. The top 5 products take 28% of clicks and top 5 brands hold 60% of demand.
- **What do buyers complain about in boys swimming trunks?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Stitch/Finish/Polish. The return rate is 4.2%.
- **When does demand for boys swimming trunks peak?**
- Demand peaks in Jul–Aug; the busiest month runs 2.8× the quietest.
- **What does it cost to enter the boys swimming trunks niche?**
- Listings span £4.71–£20.30; the average listing price is £10.25 (sweet spot $15–$100). The average incumbent carries 733 reviews — the moat a new listing must climb.
## **Related niches in Fashion**
- 69 [**mens boxers**](https://flapen.com/research/uk/fashion/mens-boxers)£2.8M/yr+21.3%**Launch it**- 70 [**sporran**](https://flapen.com/research/uk/fashion/sporran)£67K/yr+166.3%**Worth a look**- 70 [**racer back bra clip**](https://flapen.com/research/uk/fashion/racer-back-bra-clip)£52K/yr+181.5%**Worth a look**- 70 [**aviator sunglasses**](https://flapen.com/research/uk/fashion/aviator-sunglasses)£195K/yr+100.7%**Worth a look**- 70 [**gifts for colleagues**](https://flapen.com/research/uk/fashion/gifts-for-colleagues)£117K/yr+114.0%**Worth a look**- 70 [**mens shorts**](https://flapen.com/research/uk/fashion/mens-shorts)£679K/yr+220.7%**Worth a look**[**All Fashion niches **](https://flapen.com/research/uk/fashion)