---
title: "Boys Swim Trunks — $1.2M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/boys-swim-trunks"
last_updated: "2026-08-10T22:55:41.945Z"
locale: en
meta:
description: "Niche score 59/100 · $1.2M/yr market · 4.0M searches/yr · $18.28 avg price. Clears our launch bar. Data updated Jul 2026."
"og:description": "Niche score 59/100 · $1.2M/yr market · 4.0M searches/yr · $18.28 avg price. Clears our launch bar. Data updated Jul 2026."
"og:title": "Boys Swim Trunks — $1.2M/yr Amazon US Niche (2026) - Flapen"
---
# **boys swim trunks**
**Launch it**
A $1.2M/yr market growing +36.1% this quarter with returns at 3.8% — clears our launch bar.
Market size 81Growth 60Conversion 20Competition 84Returns 40Price range 66Avg price 83Brand share 79Review moat 55Quality gap 16
**Competition**
**Great****31%**
top-5 click share — an open shelf
**Avg price**
**Great****$18.28**
avg listing price — sweet spot $15–$100
**Market size**
**Great****$1.2M**
$1.2M/yr · 4.0M searches
**Brand share**
**Great****56%**
top-5 brand share — no brand owns this niche
**Price range**
**Good****$7.83–$28.96**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Good****+36.1%**
90-day search growth — must beat 0% to launch
**Review moat**
**Good****1,283.97**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Okay****3.8%**
return rate — above 5% kills the launch gate
**Conversion**
**Bad****1.6%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, boys swim trunks is a $1.2M/yr Amazon United States market (4.0M searches/yr). The top 5 brands hold 56% of demand. Demand peaks in Mar–Apr–May–Jun–Jul. Verdict: Launch it — 59/100.
Data updated Jul 8, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **boys swim trunks market data**
- **Units sold / yr**
- **50K–60K**
- avg 750–1,000/product
- **Revenue / yr**
- **$914K–$1.1M**
- units × avg price
- **Conversion rate**
- **1.6%**
- **Avg BSR**
- **#33**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **97%**
- **Out of stock**
- **1.1%**
- **Avg brand age**
- **38 months**
- **Avg seller age**
- **146 days**
## **Competition & brand share**
Clicks spread well past the top 5 (31% combined) — an open shelf where new products get seen.
**Brands**
**32 **▼falling
**Sellers**
**39**
**Top-5 brand share**
**56%**
Top 20: 93%
**Top-5 click share**
**31%**
Top 20: 63%
**Open market**
**39%**
- maamgic22% - OlyPegic12% - Todbiccz10% - Amazon Essentials7% - UMELOK6% - LUCOWEE5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +36.1% search growth over the last 90 days.
225K175KHoliday '24Spike '25Black Friday '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Apr, May, Jun, Jul · busiest ÷ quietest = 9.9×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/boys-swim-trunks/trend)
## **Top boys swim trunks search terms**
- **boys swim trunks**2.1M/yr+32.1%0.9% conv. - **boys swim trunks with compression liner**214K/yr+22.7%0.6% conv. - **boys bathing suit**203K/yr+15.5%0.5% conv. - **boy swim trunks**150K/yr+34.0%0.8% conv. - **boys swim shorts**127K/yr+56.1%0.6% conv. - **boys swimsuit**145K/yr+29.2%0.4% conv. - **traje de bao para nios**119K/yr+79.2%0.0% conv. - **swim trunks boys**113K/yr+34.0%0.7% conv. - **swimming trunks for boys**90K/yr+70.7%0.8% conv. - **boys swim**99K/yr+7.5%0.3% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/boys-swim-trunks/search-terms)
## **Top boys swim 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%$35K6%$71K9%$106K12%$142K101001K10K100K 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**Todbiccz Boys Swim Trunks 3 Pack Quick Dry Bathing Suit UPF 50+ Mesh Lining Beach Shorts for 5-16 Years**Todbiccz**$28.16**4.8★302 rev](https://www.amazon.com/dp/B0DRD95JKZ) [2**OlyPegic Boys Swim Trunks Size 10-12 Boy Swim Shorts Boy Bathing Suit Swimsuit Kids Swimwear Board Shorts with Boxer Brief Liner Compression Toddler Beach Running Swim Trunks (Coconut Tree)**OlyPegic**$12.94**4.8★786 rev](https://www.amazon.com/dp/B0C3VDGKFP) [3**Amazon Essentials Unisex Babies x Sofia Grainge Baby Boys and Toddlers Long Sleeve Rashguard and Shorts Set Ivory Navy Even Stripe 0-3 Months**Amazon Essentials**$21.53**4.7★66 rev](https://www.amazon.com/dp/B0FTZ5BL4D) [4**Olreco Boy Swim Trunks Boys 10-12 Swimming Shorts for Boys Bathing Suit with Compression Liner Kids Swim Trunks Boy Swimsuit 10**Olreco**$13.56**4.8★157 rev](https://www.amazon.com/dp/B0FFH2R795) [5**maamgic Boys Swim Trunks with Compression Liner Toddler Stretch Swim Shorts Quick Dry Swimming Trunks Boxer Brief 2 in 1 Beach Shorts Rose Coconut 10/12**maamgic**$25.98**4.8★2,162 rev](https://www.amazon.com/dp/B0BLZ6P6G2)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Amazon Essentials Unisex Babies x Sofia Grainge Baby Boys and Toddlers Long Sleeve Rashguard and Shorts Set Ivory Navy Even Stripe 0-3 Months**Amazon Essentials**$21.53**66 rev2mo ago](https://www.amazon.com/dp/B0FTZ5BL4D) [**Boys Swim Trunks Size 10-12 Boys Bathing Suit Ice Cream Swim Shorts Quick Dry Kids Swimsuit Beach Swimwear with Compression Liner**Lattlefnki**$12.61**56 rev5mo ago](https://www.amazon.com/dp/B0GK7YX1M2) [**OlyPegic Boys Swim Trunks Size 10-12 Bathing Suit Boys Swimsuit Swim Shorts Swimwear Quick Dry Swim Trunks with Compression Liner Kids Beach Board Running Shorts Game Console Youth**OlyPegic**$12.63**120 rev7mo ago](https://www.amazon.com/dp/B0G4CL8GWL) [**westwolf Big Boy Swimming Trunks with Compress Kids Yellow Waffle Running Board Shorts Swim Shorts Size 10-12 Years Boys Blue Ice Cream Pool Party**westwolf**$24.47**188 rev8mo ago](https://www.amazon.com/dp/B0FXQXRYV1) [**UMELOK Boys Swim Trunks Swimsuit Boxer Brief 2 in 1 Compression Liner Stretch Swim Shorts Quick Dry Beach Bathing Suit Neon Pineapple 10/12**UMELOK**$9.90**573 rev11mo ago](https://www.amazon.com/dp/B0FHPFXMP2)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Amazon Essentials Unisex Babies x Sofia Grainge Baby Boys and Toddlers Long Sleeve Rashguard and Shorts Set Ivory Navy Even Stripe 0-3 Months**Amazon Essentials**$21.53**4.7★**▲ 25%**](https://www.amazon.com/dp/B0FTZ5BL4D) [**Boys Swim Trunks Size 10-12 Boys Bathing Suit Ice Cream Swim Shorts Quick Dry Kids Swimsuit Beach Swimwear with Compression Liner**Lattlefnki**$12.61**4.8★**▲ 23%**](https://www.amazon.com/dp/B0GK7YX1M2) [**Hurley Boys Big Classic Board Shorts Blue/Pink/Orange 12**Hurley**$22.47**4.5★**▲ 22%**](https://www.amazon.com/dp/B07LG25Z8N) [**The Childrens Place Boys Short Sleeve Rashguard and Swim Trunk 2-Piece Set Bubbly Blue Medium**The Children's Place**$22.54**4.7★**▲ 21%**](https://www.amazon.com/dp/B0DJWQ6SNN) [**maamgic Boys Swim Trunks with Compression Liner Vintage Swim Shorts Toddler Swimsuit Fluorescent Green 5/6**maamgic**$25.96**4.8★**▲ 15%**](https://www.amazon.com/dp/B0F8B8JDYS)
**~~View all trending →~~**
## **What buyers say about boys swim trunks**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**29%
*“Fit as expected”*
**Quality-Overall**15%
*“Good Quality and came in 1 day”*
**Comfort-Overall**10%
*“So comfortable”*
**Color**7%
*“color is vibrant”*
**Value For Money**5%
*“Good product for the price”*
**Material Quality**4%
*“The material is lightweight”*
**Lining Quality**3%
*“My son loves the lining”*
**Advertised Vs Actual Product**2%
*“Better than expected”*
**Quick Drying**2%
*“Quick dry and somewhat stylish for the price”*
**Exercise/Sports Suitability**2%
*“Good for active swimming and play”*
### **What buyers complain about **
**Size-Overall**32%
*“pants are too big”*
**Waist Fit**5%
*“Crotch to waist is short”*
**Quality-Overall**3%
*“Terrible quality”*
**Thickness**3%
*“slightly thin”*
**Material Quality**3%
*“I am so disappointed in this material”*
**Color**3%
*“I wish the colors were a little more vibrant”*
**Durability**2%
*“they dont last”*
**Length**2%
*“I wish they were a lil longer thats my only complaint”*
**Shape/Style**1%
*“wish there were even more style options”*
**Allergies**1%
*“My son was getting a rash with other suits that did not have the undershorts”*
### **Top return reasons **
**Size-Overall**70%
**Waist Fit**10%
**Length**8%
**Hip Fit**4%
**Advertised Vs Actual Product**1%
**Color**1%
**Material Quality**1%
**Value For Money**1%
**Thigh Fit**1%
**Comfort-Overall**0%
## **Common questions**
- **Is boys swim trunks profitable to sell on Amazon United States?**
- The niche generates $1.2M/yr across 66 tracked products. 9 of 16 products launched in the last 360 days are still selling. 90-day search growth is +36.1%. Flapen's verdict: Launch it (59/100).
- **How competitive is the boys swim trunks niche?**
- 32 brands and 39 sellers compete. The top 5 products take 31% of clicks and top 5 brands hold 56% of demand.
- **What do buyers complain about in boys swim trunks?**
- Top complaints mined from reviews: Size-Overall, Waist Fit, Quality-Overall. The return rate is 3.8%.
- **When does demand for boys swim trunks peak?**
- Demand peaks in Mar–Apr–May–Jun–Jul; the busiest month runs 9.9× the quietest.
- **What does it cost to enter the boys swim trunks niche?**
- Listings span $7.83–$28.96; the average listing price is $18.28 (sweet spot $15–$100). The average incumbent carries 1,284 reviews — the moat a new listing must climb.
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