---
title: "12-18 Month Boy Clothes Summer — $41K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/12-18-month-boy-clothes-summer"
last_updated: "2026-08-09T00:51:01.722Z"
locale: en
meta:
  description: "Niche score 51/100 · $41K/yr market · 150K searches/yr · $17.21 avg price. A small market ($41K/yr) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 51/100 · $41K/yr market · 150K searches/yr · $17.21 avg price. A small market ($41K/yr) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "12-18 Month Boy Clothes Summer — $41K/yr Amazon US Niche (2026) - Flapen"
---

# **12-18 month boy clothes summer**

**Worth a look**

Shows a fragmented shelf (top 5 take 11% of clicks), but a small market ($41K/yr) keeps it on the watch list.

Market size 10Growth 45Conversion 20Competition 97Returns 60Price range 74Avg price 81Brand share 95Review moat 24Quality gap 18

**Competition**

**Incredible****11%**

top-5 click share — an open shelf

**Brand share**

**Incredible****37%**

top-5 brand share — no brand owns this niche

**Avg price**

**Great****$17.21**

avg listing price — sweet spot $15–$100

**Price range**

**Good****$6.94–$38.42**

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

**Returns**

**Good****2.6%**

return rate — above 5% kills the launch gate

**Growth**

**Okay****+16.2%**

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

**Review moat**

**Bad****6,525.7**

avg incumbent reviews — the moat a new listing must climb

**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

**Market size**

**Bad****$41K**

$41K/yr · 150K searches

**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")

According to Flapen's Amazon United States niche tracking, 12-18 month boy clothes summer is a $41K/yr Amazon United States market (150K searches/yr). The top 5 brands hold 37% of demand. Verdict: Worth a look — 51/100.

Data updated Jul 8, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)

## **12-18 month boy clothes summer market data**

<dl>

<dt>**Units sold / yr**</dt><dd>**3K–3K**</dd><dd>avg 0–100/product</dd>

<dt>**Revenue / yr**</dt><dd>**$43K–$52K**</dd><dd>units × avg price</dd>

<dt>**Conversion rate**</dt><dd>**1.6%**</dd>

<dt>**Avg BSR**</dt><dd>**#144**</dd>

<dt>**Page quality**</dt><dd>**0%**</dd>

<dt>**Prime**</dt><dd>**100%**</dd>

<dt>**Sponsored**</dt><dd>**95%**</dd>

<dt>**Out of stock**</dt><dd>**1.9%**</dd>

<dt>**Avg brand age**</dt><dd>**34 months**</dd>

<dt>**Avg seller age**</dt><dd>**128 days**</dd>

</dl>

## **Competition & brand share**

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

**Brands**

**71 **▼falling

**Sellers**

**78**

**Top-5 brand share**

**37%**

Top 20: 73%

**Top-5 click share**

**11%**

Top 20: 32%

**Open market**

**60%**

- Simple Joys by Carter's14% - LIOMENGZI9% - Tsultryofs5% - Kupretty5% - Gerber4% - Jecson4%

## **Demand**

Weekly Amazon search volume, last 10 weeks — +16.2% search growth over the last 90 days.

4K3KMay '26May '26May '26May '26May '26Jun '26Jun '26Jun '26Jun '26Jul '26

[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/12-18-month-boy-clothes-summer/trend)

## **Top 12-18 month boy clothes summer search terms**

- **9-12 month boy clothes summer**12K/yr+50.6%1.2% conv. - **boys 12-18 month summer clothes**5K/yr+408.3%2.0% conv. - **12 month boy summer clothes**10K/yr-0.4%1.8% conv. - **12 month summer boy clothes**8K/yr+7.2%1.4% conv. - **1 year old boy clothes summer**7K/yr+38.5%1.2% conv. - **carters baby boy clothes 12-18 months**7K/yr+75.1%1.2% conv. - **1 year old boy outfit**9K/yr+8.3%0.8% conv. - **carters 18 month boy clothes**13K/yr-35.1%1.4% conv. - **summer clothes for 1 year old boy**5K/yr-7.7%1.3% conv. - **ropa para bebe de 18 a 24 meses nio**8K/yr+16.3%0.4% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/12-18-month-boy-clothes-summer/search-terms)

## **Top 12-18 month boy clothes summer 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%$4092%$8183%$1K4%$2K101001K10K100K 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![Fufuriprefer Toddler Baby Boy Summer Clothes Short Sleeve Embroidery Baseball T-shirt & Plaid Shorts Set 2 Piece Outfit (Beige 12-18 Months)](https://m.media-amazon.com/images/I/41avJdq7RTL.jpg)**Fufuriprefer Toddler Baby Boy Summer Clothes Short Sleeve Embroidery Baseball T-shirt & Plaid Shorts Set 2 Piece Outfit (Beige 12-18 Months)**Fufuriprefer**$14.47**4.5★183 rev](https://www.amazon.com/dp/B0F1XZRBVC) [2![Kupretty Baby Boy Clothes Toddler Summer Outfit Fishing T-Shirt Tees Shirt + Shorts 6 12 18 24 Months 2T 3T Clothing Set (Fish Shorts Set Blue 12-18 Months)](https://m.media-amazon.com/images/I/4159jSMWn+L.jpg)**Kupretty Baby Boy Clothes Toddler Summer Outfit Fishing T-Shirt Tees Shirt + Shorts 6 12 18 24 Months 2T 3T Clothing Set (Fish Shorts Set Blue 12-18 Months)**Kupretty**$13.84**4.7★636 rev](https://www.amazon.com/dp/B0C4DQG8SZ) [3![Simple Joys by Carters Baby 3-pack Rompers Blue Stripe/Turquoise Dino/Grey Navy 18 Months](https://m.media-amazon.com/images/I/51M0w-onD3L.jpg)**Simple Joys by Carters Baby 3-pack Rompers Blue Stripe/Turquoise Dino/Grey Navy 18 Months**Simple Joys by Carter's**$24.76**4.8★18,852 rev](https://www.amazon.com/dp/B07211S6G7) [4![Jecson Baby Boy Outfits Toddler Boys Clothes 18-24 Month Boy Clothes Short Sleeve Cotton Shirt Tops Joggers Casual Denim Shorts 2Pcs Clothing Set](https://m.media-amazon.com/images/I/41ZOoUnkdkL.jpg)**Jecson Baby Boy Outfits Toddler Boys Clothes 18-24 Month Boy Clothes Short Sleeve Cotton Shirt Tops Joggers Casual Denim Shorts 2Pcs Clothing Set**Jecson**$13.39**4.7★134 rev](https://www.amazon.com/dp/B0G58ZJFQ8) [5![Yvowming Toddler Baby Boy Clothes Kids Summer Truck Print T Shirt Short Set with Pockets 0-4T (Apricot and Green 12-18 Months)](https://m.media-amazon.com/images/I/41cn6cFitpL.jpg)**Yvowming Toddler Baby Boy Clothes Kids Summer Truck Print T Shirt Short Set with Pockets 0-4T (Apricot and Green 12-18 Months)**Yvowming**$13.83**4.8★248 rev](https://www.amazon.com/dp/B0DRJJ1DZ6)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Simple Joys by Carters Baby 3-pack Rompers Blue Stripe/Turquoise Dino/Grey Navy 18 Months](https://m.media-amazon.com/images/I/51M0w-onD3L.jpg)**Simple Joys by Carters Baby 3-pack Rompers Blue Stripe/Turquoise Dino/Grey Navy 18 Months**Simple Joys by Carter's**$24.76**18,852 rev2mo ago](https://www.amazon.com/dp/B07211S6G7) [![Simple Joys by Carters Baby Boys 3-Pack Rompers Green Dinosaur/Navy Stripe/Yellow Stripe 12 Months](https://m.media-amazon.com/images/I/51M0w-onD3L.jpg)**Simple Joys by Carters Baby Boys 3-Pack Rompers Green Dinosaur/Navy Stripe/Yellow Stripe 12 Months**Simple Joys by Carter's**$24.23**18,852 rev2mo ago](https://www.amazon.com/dp/B07211S6G9) [![Simple Joys by Carters Baby and Toddler Boys 3-Piece Playwear Set](https://m.media-amazon.com/images/I/41KCjs1uJ0L.jpg)**Simple Joys by Carters Baby and Toddler Boys 3-Piece Playwear Set**Simple Joys by Carter's**$17.42**19,227 rev2mo ago](https://www.amazon.com/dp/B07ZPPY256) [![Simple Joys by Carters Baby Boys 3-Pack Snap-up Rompers Pants Alligators/stripe/Diggers 12 Months](https://m.media-amazon.com/images/I/51XLZ1ZkIYL.jpg)**Simple Joys by Carters Baby Boys 3-Pack Snap-up Rompers Pants Alligators/stripe/Diggers 12 Months**Simple Joys by Carter's**$20.12**21,726 rev2mo ago](https://www.amazon.com/dp/B07GKZ3MMK) [![Twosya Baby Boys Summer Clothes Toddler Boys Button-down Shirt Tops + Shorts Outfit 2PCS 6 Months-7 Years](https://m.media-amazon.com/images/I/51fkSEihJUL.jpg)**Twosya Baby Boys Summer Clothes Toddler Boys Button-down Shirt Tops + Shorts Outfit 2PCS 6 Months-7 Years**Twosya**$12.79**82 rev6mo ago](https://www.amazon.com/dp/B0GFW4G37C)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Simple Joys by Carters Baby Boys 3-Pack Snap-up Rompers Pants Alligators/stripe/Diggers 12 Months](https://m.media-amazon.com/images/I/51XLZ1ZkIYL.jpg)**Simple Joys by Carters Baby Boys 3-Pack Snap-up Rompers Pants Alligators/stripe/Diggers 12 Months**Simple Joys by Carter's**$20.12**4.8★**▲ 25%**](https://www.amazon.com/dp/B07GKZ3MMK) [![Twosya Baby Boys Summer Clothes Toddler Boys Button-down Shirt Tops + Shorts Outfit 2PCS 6 Months-7 Years](https://m.media-amazon.com/images/I/51fkSEihJUL.jpg)**Twosya Baby Boys Summer Clothes Toddler Boys Button-down Shirt Tops + Shorts Outfit 2PCS 6 Months-7 Years**Twosya**$12.79**4.6★**▲ 24%**](https://www.amazon.com/dp/B0GFW4G37C) [![Jecson Baby Boy Outfits Toddler Boys Clothes 18-24 Month Boy Clothes Short Sleeve Cotton Shirt Tops Joggers Casual Denim Shorts 2Pcs Clothing Set](https://m.media-amazon.com/images/I/41ZOoUnkdkL.jpg)**Jecson Baby Boy Outfits Toddler Boys Clothes 18-24 Month Boy Clothes Short Sleeve Cotton Shirt Tops Joggers Casual Denim Shorts 2Pcs Clothing Set**Jecson**$13.39**4.7★**▲ 22%**](https://www.amazon.com/dp/B0G58ZJFQ8) [![Kupretty Toddler Baby Boy Clothes Summer Baseball Outfits Waffle Knit Play Ball Embroidery Crewneck T-shirt + Shorts Set (Blue-baseball 12-18 Months)](https://m.media-amazon.com/images/I/41zvaC1WDwL.jpg)**Kupretty Toddler Baby Boy Clothes Summer Baseball Outfits Waffle Knit Play Ball Embroidery Crewneck T-shirt + Shorts Set (Blue-baseball 12-18 Months)**Kupretty**$15.72**4.6★**▲ 22%**](https://www.amazon.com/dp/B0G4CRLS5V) [![Tsultryofs Toddler Baby Boy Summer Clothes Letter Graphic Print Short Sleeve T-Shirt Tops and Shorts 6 12 18 24M 2 3T Set (Daddy Mommy Khaki 12-18 Months)](https://m.media-amazon.com/images/I/41OEtaLxYHL.jpg)**Tsultryofs Toddler Baby Boy Summer Clothes Letter Graphic Print Short Sleeve T-Shirt Tops and Shorts 6 12 18 24M 2 3T Set (Daddy Mommy Khaki 12-18 Months)**Tsultryofs**$14.24**4.7★**▲ 19%**](https://www.amazon.com/dp/B0G6Z1RH15)

**~~View all trending →~~**

## **What buyers say about 12-18 month boy clothes summer**

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

### **What buyers love **

**Size-Overall**22%

*“Fit well”*

**Quality-Overall**16%

*“Great price for quality set”*

**Soft Feel**7%

*“So soft”*

**Comfort-Overall**7%

*“Really Comfortable Shoes”*

**Value For Money**5%

*“Good Value”*

**Material Quality**4%

*“Very soft material”*

**Color**4%

*“The colors are pretty”*

**Ease Of Use**3%

*“It is easy to wear”*

**Durability**2%

*“Good durable material”*

**Advertised Vs Actual Product**2%

*“As described”*

### **What buyers complain about **

**Size-Overall**31%

*“it is tight”*

**Material Quality**5%

*“The material is a little cheap”*

**Quality-Overall**4%

*“the product itself is not made well”*

**Advertised Vs Actual Product**3%

*“Deceiving”*

**Gap/Hole**2%

*“It came with a hole”*

**Smell**2%

*“smelly and wrong size”*

**Thickness**2%

*“Item was thicker than expected”*

**Durability**2%

*“They arent going to last much longer”*

**Allergies**2%

*“They give my baby blisters”*

**Hard Feel**2%

*“wish it was abit more soft to the touch”*

### **Top return reasons **

**Size-Overall**54%

**Feet Fit**14%

**Length**10%

**Material Quality**5%

**Quality-Overall**2%

**Color**2%

**Advertised Vs Actual Product**2%

**Width**1%

**Value For Money**1%

**Waist Fit**1%

## **Common questions**

<dl>

<dt>**Is 12-18 month boy clothes summer profitable to sell on Amazon United States?**</dt><dd>The niche generates $41K/yr across 227 tracked products. 51 of 113 products launched in the last 360 days are still selling. 90-day search growth is +16.2%. Flapen's verdict: Worth a look (51/100).</dd>

<dt>**How competitive is the 12-18 month boy clothes summer niche?**</dt><dd>71 brands and 78 sellers compete. The top 5 products take 11% of clicks and top 5 brands hold 37% of demand.</dd>

<dt>**What do buyers complain about in 12-18 month boy clothes summer?**</dt><dd>Top complaints mined from reviews: Size-Overall, Material Quality, Quality-Overall. The return rate is 2.6%.</dd>

<dt>**What does it cost to enter the 12-18 month boy clothes summer niche?**</dt><dd>Listings span $6.94–$38.42; the average listing price is $17.21 (sweet spot $15–$100). The average incumbent carries 6,526 reviews — the moat a new listing must climb.</dd>

</dl>

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