---
title: "Fat Belly Costume — $5K/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/fat-belly-costume"
last_updated: "2026-08-12T16:51:56.205Z"
locale: en
meta:
description: "Amazon product research for fat belly costume: $5K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for fat belly costume: $5K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Fat Belly Costume — $5K/mo Amazon US Product Research (2026)"
---
# **Fat Belly Costume**
**Skip it**
A small market ($61K/yr) — this niche doesn't clear our bar today.
Market size 15Growth 19Conversion 52Competition 38Returns 20Price range 28Avg price 94Brand share 49Review moat 96Quality gap 95
**Review moat**
**Incredible****75.31**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Incredible****4.0★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Great****$48.74**
avg listing price — sweet spot $15–$100
**Conversion**
**Good****4.2%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Okay****76%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****62%**
top-5 click share — leaders hold, buyers still browse
**Price range**
**Okay****$7.48–$309.52**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Bad****6.4%**
return rate — above 5% kills the launch gate
**Growth**
**Bad****-11.6%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$61K**
$61K/yr · 30K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
## **Is fat belly costume profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, fat belly costume is a $61K/yr Amazon United States market (30K searches/yr). The top 5 brands hold 76% of demand. Verdict: Skip it — 43/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **fat belly costume market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **2K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$97K–$122K**
- units × avg price
- **Conversion rate**
- **4.2%**
- **Avg BSR**
- **#7,507**
- **Page quality**
- **0%**
- **Prime**
- **81%**
- **Sponsored**
- **63%**
- **Out of stock**
- **16.8%**
- **Avg brand age**
- **39 months**
- **Avg seller age**
- **216 days**
## **Competition: brands, sellers & click share**
The top 5 products take 62% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**12 **▲rising
**Sellers**
**16**
**Top-5 brand share**
**76%**
Top 20: 100%
**Top-5 click share**
**62%**
Top 20: 100%
**Open market**
**20%**
- Oppaionaho25% - LOCOLO16% - Uoeo16% - DCLFIRMX15% - abouder5% - Fun Costumes4%
## **fat belly costume demand & seasonality**
Weekly Amazon search volume, last 37 weeks — -11.6% search growth over the last 90 days.
6K4KSpike '26Oct '25Dec '25Jan '26Mar '26Apr '26May '26
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/fat-belly-costume/trend)
## **Top fat belly costume search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **inflatable belly**13K/yr+9.9%4.3% conv. - **lorax belly**13K/yr-37.2%9.9% conv. - **lorax costume belly**4K/yr-53.1%6.0% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/fat-belly-costume/search-terms)
## **Top fat belly 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%4%$2K8%$5K12%$7K16%$10K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted
All 16 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Oppaionaho Fake Pregnant Belly for 3-10 Months DlY Inflatable Silicone Fake Pregnancy Belly Twins Tummy Cosplay (#2 XL)**Oppaionaho**$301.94**0.0★0 rev](https://www.amazon.com/dp/B0DKWJNDGQ) [2**Inflatable Fake Belly for Adults Teens Santa Claus Pregnant Beer Belly Cosplay Prop with Inflation Pump for Halloween Christmas Birthday Party Role Play Costume Accessories**LOCOLO**$10.45**3.9★274 rev](https://www.amazon.com/dp/B08H55C95N) [3**DCLFIRMX 2 Pack Santa Claus Inflatable Fake Pregnant Belly Pregnant Woman Cosplay Fake Belly Beer Belly Costume with Mini Inflator for Halloween Christmas Role Playing Party**DCLFIRMX**$7.73**4.2★19 rev](https://www.amazon.com/dp/B0FWRYK9D6) [4**2 Pack Santa Big Belly Inflatable Santa Claus Beer Belly with Mini Inflator Inflatable Bellys Cosplay Props Pregnant Woman Fake Bellys**Uoeo**$11.52**4.2★105 rev](https://www.amazon.com/dp/B08HD6Q925) [5**Fake Pregnant Belly Inflatable Christmas Santa Claus Beer Belly with Mini Inflator for Halloween Christmas Cosplay Props Pregnant Woman Fake Bellys**Uoeo**$10.58**4.2★160 rev](https://www.amazon.com/dp/B08HD5LJTX)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**fulasiteu 6Pcs Fake Inflatable Belly Costume Yellow Mustache and Eyebrows with Balloon Pump Fun Cosplay Props for Reading Week Halloween Party Costume Role-Playing Unisex Accessories**fulasiteu**$9.17**3 rev7mo ago](https://www.amazon.com/dp/B0G6469BK5) [**abouder Fake Belly Costume with Yellow Mustache and Eyebrows Glasses Inflatable Belly Filler Cosplay Props for Book Character Costume**abouder**$11.69**1 rev7mo ago](https://www.amazon.com/dp/B0G5Q3H29X) [**DCLFIRMX 2 Pack Santa Claus Inflatable Fake Pregnant Belly Pregnant Woman Cosplay Fake Belly Beer Belly Costume with Mini Inflator for Halloween Christmas Role Playing Party**DCLFIRMX**$7.73**19 rev8mo ago](https://www.amazon.com/dp/B0FWRYK9D6) [**DCLFIRMX Santa Claus Inflatable Fake Pregnant Belly Pregnant Woman Cosplay Fake Belly Beer Belly Costume with Mini Inflator for Halloween Christmas Role Playing Party**DCLFIRMX**$7.48**19 rev8mo ago](https://www.amazon.com/dp/B0FWS16C5X) [**Haawooky Fake Padded Belly Fat Suit Santa Claus Suit Unisex Stuffed Santa Belly Costume Dress Up Accessory for Christmas Halloween Cosplay**Haawooky**$19.86**19 rev11mo ago](https://www.amazon.com/dp/B0FJ5QWMST)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Oppaionaho Fake Pregnant Belly for 3-10 Months DlY Inflatable Silicone Fake Pregnancy Belly Twins Tummy Cosplay (#1 XL)**Oppaionaho**$309.52**0.0★**▲ 940%**](https://www.amazon.com/dp/B0DKWLCGWF) [**DCLFIRMX 2 Pack Santa Claus Inflatable Fake Pregnant Belly Pregnant Woman Cosplay Fake Belly Beer Belly Costume with Mini Inflator for Halloween Christmas Role Playing Party**DCLFIRMX**$7.73**4.2★**▲ 648%**](https://www.amazon.com/dp/B0FWRYK9D6) [**Oppaionaho Fake Pregnant Belly for 3-10 Months DlY Inflatable Silicone Fake Pregnancy Belly Twins Tummy Cosplay (#2 XL)**Oppaionaho**$301.94**0.0★**▲ 629%**](https://www.amazon.com/dp/B0DKWJNDGQ) [**fulasiteu 6Pcs Fake Inflatable Belly Costume Yellow Mustache and Eyebrows with Balloon Pump Fun Cosplay Props for Reading Week Halloween Party Costume Role-Playing Unisex Accessories**fulasiteu**$9.17**4.0★**▲ 465%**](https://www.amazon.com/dp/B0G6469BK5) [**abouder Fake Belly Costume with Yellow Mustache and Eyebrows Glasses Inflatable Belly Filler Cosplay Props for Book Character Costume**abouder**$11.69**5.0★**▲ 455%**](https://www.amazon.com/dp/B0G5Q3H29X)
**~~View all trending →~~**
## **What reviews say buyers love and hate about fat belly costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**17%
*“Its OK good quality”*
**Fun/Entertainment Experience**17%
*“FUN”*
**Strength**14%
*“Nice and sturdy”*
**Ease Of Use**10%
*“Its easy to put on”*
**Comfort-Overall**8%
*“And the glasses are comfy”*
**Advertised Vs Actual Product**7%
*“They're exactly as advertised”*
**Portability**5%
*“The Belly: Portability Meets Potbelly”*
**Color**5%
*“The Look: The yellow color is perfectly Truffula-bright”*
**Design-Overall**5%
*“The Coverage: The eyebrows are nice and bushy, and the mustache is large enough to give you that signature muffled look when you talk”*
**Size-Overall**3%
*“The size is great”*
### **What buyers complain about **
**Adhesion/Stickiness**21%
*“eyebrows did not come off the stickys right”*
**Quality-Overall**18%
*“Very cheap made not even worth it”*
**Value For Money**14%
*“Very cheap made not even worth it”*
**Size-Overall**9%
*“the balloon was such a weird fit”*
**Shape/Style**9%
*“shape not centered”*
**Ease Of Use**9%
*“hard to keep on”*
**Durability**8%
*“the belly itself didnt hold up at all”*
**Strap/String Quality**5%
*“Very poorly made the first time was worn the strap broke”*
**Gap/Hole**5%
*“Item came with a hole”*
### **Top return reasons **
**Size-Overall**39%
**Waist Fit**9%
**Quality-Overall**8%
**Functionality-Overall**7%
**Advertised Vs Actual Product**7%
**Material Quality**5%
**Length**4%
**Shape/Style**3%
**Adhesion/Stickiness**3%
**Smell**2%
## **Common fat belly costume questions**
- **Is fat belly costume profitable to sell on Amazon United States?**
- The niche generates $61K/yr across 16 tracked products. 0 of 5 products launched in the last 360 days are still selling. 90-day search growth is -11.6%. Flapen's verdict: Skip it (43/100).
- **How competitive is the fat belly costume niche?**
- 12 brands and 16 sellers compete. The top 5 products take 62% of clicks and top 5 brands hold 76% of demand.
- **What do buyers complain about in fat belly costume?**
- Top complaints mined from reviews: Adhesion/Stickiness, Quality-Overall, Value For Money. The return rate is 6.4% — above our launch gate.
- **What does it cost to enter the fat belly costume niche?**
- Listings span $7.48–$309.52; the average listing price is $48.74 (sweet spot $15–$100). The average incumbent carries 75 reviews — the moat a new listing must climb.
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