---
title: "King Julien Costume — $4K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/king-julien-costume"
last_updated: "2026-08-12T19:40:43.889Z"
locale: en
meta:
description: "Amazon product research for king julien costume: $4K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for king julien costume: $4K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "King Julien Costume — $4K/mo Amazon US Product Research"
---
# **King Julien Costume**
**Skip it**
High returns (13.0%) — this niche doesn't clear our bar today.
Market size 13Growth 32Conversion 24Competition 8Returns 0Price range 82Avg price 91Brand share 17Review moat 46Quality gap 78
**Avg price**
**Great****$21.52**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$10.94–$35.25**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****1,879.11**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Okay****+6.0%**
90-day search growth — must beat 0% to launch
**Conversion**
**Bad****1.9%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Bad****93%**
top-5 brand share — brand-locked demand
**Market size**
**Bad****$52K**
$52K/yr · 125K searches
**Competition**
**Bad****90%**
top-5 click share — a locked-up shelf
**Returns**
**Bad****13.0%**
return rate — above 5% kills the launch gate
**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 julien costume profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, king julien costume is a $52K/yr Amazon United States market (125K searches/yr). The top 5 brands hold 93% of demand. Verdict: Skip it — 31/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **king julien costume market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **1K–2K**
- avg 100–250/product
- **Revenue / yr**
- **$27K–$32K**
- units × avg price
- **Conversion rate**
- **1.9%**
- **Avg BSR**
- **#41,259**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **89%**
- **Out of stock**
- **7.7%**
- **Avg brand age**
- **43 months**
- **Avg seller age**
- **205 days**
## **Competition: brands, sellers & click share**
The top 5 products capture 90% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**8 **▲rising
**Sellers**
**9**
**Top-5 brand share**
**93%**
Top 20: 100%
**Top-5 click share**
**90%**
Top 20: 100%
**Open market**
**4%**
- Roicaholy38% - yfgkgkjh27% - Cosplaya18% - Funziez!7% - Aukmla3% - PIXHOTUL2% - Open — no brand owns it (2 brands, 4%)
## **king julien costume demand & seasonality**
Weekly Amazon search volume, last 36 weeks — +6.0% search growth over the last 90 days.
13K8KSpike '26Nov '25Dec '25Jan '26Mar '26Apr '26May '26
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/king-julien-costume/trend)
## **Top king julien costume search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **king julien costume**77K/yr+5.8%0.8% conv. - **king julien crown**25K/yr-21.1%0.8% conv. - **king julien costume madagascar**7K/yr+67.3%0.9% conv. - **king julien hat**4K/yr+120.6%0.7% conv. - **king julian costume**3K/yr+37.1%0.8% conv. - **king julien headpiece**5K/yr+70.6%1.1% conv. - **king julien and mort costume**2K/yr-12.4%0.0% conv. - **king julien costume adult**2K/yr+4.5%2.2% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/king-julien-costume/search-terms)
## **Top king julien costume 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%10%$5K20%$10K30%$16K40%$21K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 9 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Roicaholy Lemur Ears and Tail Set Lemur Costume Cosplay Accessory Fluffy Faux Fur Tail Animal Ears Headband for Halloween Party**Roicaholy**$20.14**4.1★50 rev](https://www.amazon.com/dp/B0D53XMSK1) [2**Unisex Adult Onesie Lemur Animal Pajamas One-Piece Cosplay Costume Women Man Halloween L**yfgkgkjh**$29.21**4.3★621 rev](https://www.amazon.com/dp/B07Y1NVW2N) [3**Cosplaya Mens Gold King Crown Costume Hat Prince Medieval Cosplay Adventure Womens Halloween Christmas Costumes One Size**Cosplaya**$19.32**4.9★22 rev](https://www.amazon.com/dp/B0F4DYK2HX) [4**Funziez! Slim Fit Adult Onesie - Animal Halloween Costume - Plush Unisex One Piece Cosplay Suit for Women and Men**Funziez!**$35.25**4.5★14,484 rev](https://www.amazon.com/dp/B07WHTD3PY) [5**Unisex Adult Onesie Lemur Animal Pajamas One-Piece Cosplay Costume Women Man Halloween S**yfgkgkjh**$27.05**4.3★621 rev](https://www.amazon.com/dp/B08DXPQQNN)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Mcaifdbxsm Adult Animal Onesie Pajamas Halloween Cosplay Costume Sleepwear for Women and Men Large**Mcaifdbxsm**$21.78**30 rev11mo ago](https://www.amazon.com/dp/B0FLDPTVTN) [**Cosplaya Mens Gold King Crown Costume Hat Prince Medieval Cosplay Adventure Womens Halloween Christmas Costumes One Size**Cosplaya**$19.32**22 rev1y ago](https://www.amazon.com/dp/B0F4DYK2HX) [**Roicaholy Lemur Ears and Tail Set Lemur Costume Cosplay Accessory Fluffy Faux Fur Tail Animal Ears Headband for Halloween Party**Roicaholy**$20.14**50 rev2y ago](https://www.amazon.com/dp/B0D53XMSK1) [**Skylety 1 Set Hawaiian Grass Leaf Skirt Tropical Hula Luau Party Decor For Adult Women Jungle Theme Costume Halloween Dress Outfits**Skylety**$15.90**234 rev5y ago](https://www.amazon.com/dp/B0989TZWTK) [**Unisex Adult Onesie Lemur Animal Pajamas One-Piece Cosplay Costume Women Man Halloween L**yfgkgkjh**$29.21**621 rev6y ago](https://www.amazon.com/dp/B07Y1NVW2N)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Unisex Adult Onesie Lemur Animal Pajamas One-Piece Cosplay Costume Women Man Halloween L**yfgkgkjh**$29.21**4.3★**▲ 650%**](https://www.amazon.com/dp/B07Y1NVW2N) [**Cosplaya Mens Gold King Crown Costume Hat Prince Medieval Cosplay Adventure Womens Halloween Christmas Costumes One Size**Cosplaya**$19.32**4.9★**▲ 587%**](https://www.amazon.com/dp/B0F4DYK2HX) [**Mcaifdbxsm Adult Animal Onesie Pajamas Halloween Cosplay Costume Sleepwear for Women and Men Large**Mcaifdbxsm**$21.78**4.3★**▲ 294%**](https://www.amazon.com/dp/B0FLDPTVTN) [**PIXHOTUL Leaf Hula Skirt and Hibiscus Leis Set Hawaiian Costumes for Beach Luau Party (Color 1)**PIXHOTUL**$10.94**4.0★**▲ 18%**](https://www.amazon.com/dp/B07SPM3HNG) [**Funziez! Slim Fit Adult Onesie - Animal Halloween Costume - Plush Unisex One Piece Cosplay Suit for Women and Men**Funziez!**$35.25**4.5★**▼ 28%**](https://www.amazon.com/dp/B07WHTD3PY)
**~~View all trending →~~**
## **What reviews say buyers love and hate about king julien costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**29%
*“Great quality and very cute”*
**Value For Money**25%
*“Good for the price”*
**Advertised Vs Actual Product**17%
*“Looks as advertised”*
**Durability**8%
*“Held up well for a few wears”*
**Velcro Quality**4%
*“Comfy to wear - I like the Velcro”*
**Adjustability/Rotatability/Reclining**4%
*“so easy to adjust”*
**Comfort-Overall**4%
*“Comfy and bright”*
### **What buyers complain about **
**Size-Overall**50%
*“Very small”*
**Strap/String Quality**14%
*“the strap to hold on the tail is only 26 fully extended so meant for a child or a very thin person”*
**Durability**14%
*“Completely feel apart immediately”*
**Quality-Overall**14%
*“Quality. Not to my liking”*
### **Top return reasons **
**Size-Overall**49%
**Waist Fit**10%
**Quality-Overall**7%
**Length**5%
**Advertised Vs Actual Product**5%
**Material Quality**4%
**Shape/Style**3%
**Durability**2%
**Defective Material/Parts**2%
**Wrinkles**1%
## **Common king julien costume questions**
- **Is king julien costume profitable to sell on Amazon United States?**
- The niche generates $52K/yr across 9 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +6.0%. Flapen's verdict: Skip it (31/100).
- **How competitive is the king julien costume niche?**
- 8 brands and 9 sellers compete. The top 5 products take 90% of clicks and top 5 brands hold 93% of demand.
- **What do buyers complain about in king julien costume?**
- Top complaints mined from reviews: Size-Overall, Strap/String Quality, Durability. The return rate is 13.0% — above our launch gate.
- **What does it cost to enter the king julien costume niche?**
- Listings span $10.94–$35.25; the average listing price is $21.52 (sweet spot $15–$100). The average incumbent carries 1,879 reviews — the moat a new listing must climb.
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