---
title: "King Costume for Boys — $4K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/king-costume-for-boys"
last_updated: "2026-08-12T18:45:57.018Z"
locale: en
meta:
description: "Amazon product research for king costume for boys: $4K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for king costume for boys: $4K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "King Costume for Boys — $4K/mo Amazon US Product Research"
---
# **King Costume for Boys**
**Skip it**
Soft demand (-52.3% this quarter) — this niche doesn't clear our bar today.
Market size 12Growth 0Conversion 14Competition 69Returns 12Price range 78Avg price 95Brand share 77Review moat 88Quality gap 76
**Avg price**
**Incredible****$22.83**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****249.5**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Great****$8.61–$39.25**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Great****58%**
top-5 brand share — no brand owns this niche
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Competition**
**Good****44%**
top-5 click share — leaders hold, buyers still browse
**Conversion**
**Bad****1.1%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$50K**
$50K/yr · 193K searches
**Returns**
**Bad****8.6%**
return rate — above 5% kills the launch gate
**Growth**
**Bad****-52.3%**
90-day search growth — must beat 0% to launch
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
## **Is king costume for boys profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, king costume for boys is a $50K/yr Amazon United States market (193K searches/yr). The top 5 brands hold 58% of demand. Demand peaks in Feb–Mar–Oct. Verdict: Skip it — 43/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **king costume for boys market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **4K–5K**
- avg 0–100/product
- **Revenue / yr**
- **$91K–$114K**
- units × avg price
- **Conversion rate**
- **1.1%**
- **Avg BSR**
- **#543**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **91%**
- **Out of stock**
- **6.6%**
- **Avg brand age**
- **41 months**
- **Avg seller age**
- **186 days**
## **Competition: brands, sellers & click share**
The top 5 products take 44% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**22 **▼falling
**Sellers**
**34**
**Top-5 brand share**
**58%**
Top 20: 98%
**Top-5 click share**
**44%**
Top 20: 82%
**Open market**
**37%**
- Proumhang22% - TOGROP11% - Dagmar11% - Dress Up America9% - CLOOOUDS6% - ReliBeauty5%
## **king costume for boys demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -52.3% search growth over the last 90 days.
6K4KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Feb, Mar, Oct · busiest ÷ quietest = 6.9×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/king-costume-for-boys/trend)
## **Top king costume for boys search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **king costume for boys**52K/yr-56.1%2.9% conv. - **kids king costume**23K/yr-56.6%4.0% conv. - **king costume kids**18K/yr-53.7%2.4% conv. - **king outfit for boys**10K/yr-52.4%2.8% conv. - **boys king costume**12K/yr-59.3%2.8% conv. - **fairytale costumes for boys**7K/yr-5.9%0.7% conv. - **fairy tale costumes for boys**7K/yr-39.1%0.4% conv. - **king dress up for boys**6K/yr-51.3%3.8% conv. - **disfraz de rey para nio**7K/yr-47.9%1.2% conv. - **disney prince costume for boys**5K/yr-28.9%0.4% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/king-costume-for-boys/search-terms)
## **Top king costume for boys products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%5%$2K10%$5K15%$7K20%$10K101001K 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**Proumhang Kids King Cape Kids Prince Cloak with Crown Queen Royal Robe for Boys Girls Coronation Cloak 80cm Red with Crown**Proumhang**$11.90**4.0★186 rev](https://www.amazon.com/dp/B0D6YJJ556) [2**Dagmar Childrens King Prince Velvet Cloak Set 3-Color**Dagmar**$17.51**4.2★41 rev](https://www.amazon.com/dp/B0F262LM5Z) [3**Dress Up America King Crown and Robe - King Costume for Kids - One Size Fits Most (Red)**Dress Up America**$24.95**4.5★807 rev](https://www.amazon.com/dp/B01C7KIUDE) [4**CLOOOUDS King Costume Set Red Cloak Golden Crown And Scepter Set Prince Capes Halloween Costume For Kids Teen Adult**CLOOOUDS**$19.53**4.2★326 rev](https://www.amazon.com/dp/B0CDV2C38H) [5**King Costume for Kids Robe Crown Scepter Set Boys Royal Prince Cape Dress Up Cosplay Red**TOGROP**$18.53**3.8★534 rev](https://www.amazon.com/dp/B09W2CXQM8)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**ACLGCSU King Costume for Kids 90cm Cape Boys Halloween Costume Prince Cape Dress Up Christmas Party (Blue)**ACLGCSU**$15.84**21 rev9mo ago](https://www.amazon.com/dp/B0FJSK4SCR) [**Akokvlar 9 Pcs Prince Charming Costume for Boys Medieval Royal King Outfits for Kids (White 7-8 Years)**Akokvlar**$19.41**94 rev1y ago](https://www.amazon.com/dp/B0FBLPP7PY) [**Kosgraiy Kids King Costume Blue King Cape and Crown Scepter Kings Robe Kids Halloween Costume Kings Outfit for Boys M/41inch**Kosgraiy**$30.98**103 rev1y ago](https://www.amazon.com/dp/B0F9XW5XLL) [**Dagmar Childrens King Prince Velvet Cloak Set 3-Color**Dagmar**$17.51**41 rev1y ago](https://www.amazon.com/dp/B0F262LM5Z) [**Dagmar Childrens King Prince Velvet Cloak Set 3-Color**Dagmar**$17.47**41 rev1y ago](https://www.amazon.com/dp/B0F2617JV6)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Akokvlar 9 Pcs Prince Charming Costume for Boys Medieval Royal King Outfits for Kids (White 7-8 Years)**Akokvlar**$19.41**4.5★**▲ 191%**](https://www.amazon.com/dp/B0FBLPP7PY) [**Dress Up America King Costume for Boys & Girls Crown & Velvet Robe Set - Halloween Royal Cape Dress Up for Kids (Blue)**Dress Up America**$25.79**4.5★**▲ 175%**](https://www.amazon.com/dp/B01C7KITOE) [**Gorkonpy Prince Costume for Boys Halloween Kids Prince Charming Costume for Toddler Boys (Blue 5-6 Years)**Gorkonpy**$27.23**4.7★**▲ 134%**](https://www.amazon.com/dp/B0C16WHGZG) [**Dagmar Childrens King Prince Velvet Cloak Set 3-Color**Dagmar**$17.51**4.2★**▲ 116%**](https://www.amazon.com/dp/B0F262LM5Z) [**Rubies King Cape for Kids Boys No Size**Rubies**$8.61**4.0★**▲ 96%**](https://www.amazon.com/dp/B07CDF1TB5)
**~~View all trending →~~**
## **What reviews say buyers love and hate about king costume for boys**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**26%
*“Very well made”*
**Size-Overall**16%
*“Size and fit were accurate”*
**Value For Money**15%
*“Great value”*
**Ease Of Use**5%
*“Useful”*
**Material Quality**4%
*“Even the material and quality looked good”*
**Soft Feel**3%
*“the material was velvety smooth”*
**Advertised Vs Actual Product**3%
*“Look just like the picture”*
**Fun/Entertainment Experience**2%
*“Looks great and fun”*
**Comfort-Overall**2%
*“it was comfortable”*
**Durability**1%
*“Its very durable and child proof”*
### **What buyers complain about **
**Durability**22%
*“broke instantly”*
**Quality-Overall**19%
*“Very cheaply made”*
**Size-Overall**12%
*“does run a little big”*
**Strap/String Quality**8%
*“Strings tore the very first time I tried to tie them”*
**Velcro Quality**5%
*“Velcro fell off”*
**Advertised Vs Actual Product**5%
*“does not match the size chart”*
**Material Quality**3%
*“Very cheap material”*
**Value For Money**3%
*“Not worth the price”*
**Precious Gemstone**2%
*“All the gems came off the crown”*
**Color**2%
*“The colors were super off”*
### **Top return reasons **
**Size-Overall**50%
**Quality-Overall**7%
**Length**6%
**Material Quality**6%
**Advertised Vs Actual Product**4%
**Strap/String Quality**4%
**Defective Material/Parts**4%
**Durability**3%
**Value For Money**2%
**Product Condition**2%
## **Common king costume for boys questions**
- **Is king costume for boys profitable to sell on Amazon United States?**
- The niche generates $50K/yr across 34 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -52.3%. Flapen's verdict: Skip it (43/100).
- **How competitive is the king costume for boys niche?**
- 22 brands and 34 sellers compete. The top 5 products take 44% of clicks and top 5 brands hold 58% of demand.
- **What do buyers complain about in king costume for boys?**
- Top complaints mined from reviews: Durability, Quality-Overall, Size-Overall. The return rate is 8.6% — above our launch gate.
- **When does demand for king costume for boys peak?**
- Demand peaks in Feb–Mar–Oct; the busiest month runs 6.9× the quietest.
- **What does it cost to enter the king costume for boys niche?**
- Listings span $8.61–$39.25; the average listing price is $22.83 (sweet spot $15–$100). The average incumbent carries 250 reviews — the moat a new listing must climb.
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