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.

Fat Belly Costume

Skip it

A small market ($61K/yr) — this niche doesn't clear our bar today.

Review moat

Incredible75.31

avg incumbent reviews — the moat a new listing must climb

Quality gap

Incredible4.0★

avg incumbent rating — lower means beatable quality

Avg price

Great$48.74

avg listing price — sweet spot $15–$100

Conversion

Good4.2%

search→purchase rate — share of searches ending in a sale

Brand share

Okay76%

top-5 brand share — brands hold most of the demand

Competition

Okay62%

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

Bad6.4%

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 Quality Gap High Returns

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

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

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.

Open Trend

Top fat belly costume search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

inflatable belly13K/yr +9.9%4.3% conv.
lorax belly13K/yr -37.2%9.9% conv.
lorax costume belly4K/yr -53.1%6.0% conv.

All 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.

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

Oppaionaho Fake Pregnant Belly for 3-10 Months DlY Inflatable Silicone Fake Pregnancy Belly Twins Tummy Cosplay (#2 XL)

Oppaionaho$301.940.0★0 rev

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$10.453.9★274 rev

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$7.734.2★19 rev

2 Pack Santa Big Belly Inflatable Santa Claus Beer Belly with Mini Inflator Inflatable Bellys Cosplay Props Pregnant Woman Fake Bellys

Uoeo$11.524.2★105 rev

Fake Pregnant Belly Inflatable Christmas Santa Claus Beer Belly with Mini Inflator for Halloween Christmas Cosplay Props Pregnant Woman Fake Bellys

Uoeo$10.584.2★160 rev

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$9.173 rev

7mo ago

abouder Fake Belly Costume with Yellow Mustache and Eyebrows Glasses Inflatable Belly Filler Cosplay Props for Book Character Costume

abouder$11.691 rev

7mo ago

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$7.7319 rev

8mo ago

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$7.4819 rev

8mo ago

Haawooky Fake Padded Belly Fat Suit Santa Claus Suit Unisex Stuffed Santa Belly Costume Dress Up Accessory for Christmas Halloween Cosplay

Haawooky$19.8619 rev

11mo ago

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-Overall17%

“Its OK good quality”

Fun/Entertainment Experience17%

“FUN”

Strength14%

“Nice and sturdy”

Ease Of Use10%

“Its easy to put on”

Comfort-Overall8%

“And the glasses are comfy”

Advertised Vs Actual Product7%

“They're exactly as advertised”

Portability5%

“The Belly: Portability Meets Potbelly”

Color5%

“The Look: The yellow color is perfectly Truffula-bright”

Design-Overall5%

“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-Overall3%

“The size is great”

What buyers complain about

Adhesion/Stickiness21%

“eyebrows did not come off the stickys right”

Quality-Overall18%

“Very cheap made not even worth it”

Value For Money14%

“Very cheap made not even worth it”

Size-Overall9%

“the balloon was such a weird fit”

Shape/Style9%

“shape not centered”

Ease Of Use9%

“hard to keep on”

Durability8%

“the belly itself didnt hold up at all”

Strap/String Quality5%

“Very poorly made the first time was worn the strap broke”

Gap/Hole5%

“Item came with a hole”

Top return reasons

Size-Overall39%

Waist Fit9%

Quality-Overall8%

Functionality-Overall7%

Advertised Vs Actual Product7%

Material Quality5%

Length4%

Shape/Style3%

Adhesion/Stickiness3%

Smell2%

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.