Is gengar onesie profitable to sell on Amazon United States?

The niche generates $26K/yr across 31 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +7.6%. Flapen's verdict: Skip it (40/100).

How competitive is the gengar onesie niche?

20 brands and 42 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 66% of demand.

What do buyers complain about in gengar onesie?

Top complaints mined from reviews: Size-Overall, Material Quality, Durability. The return rate is 5.0% — above our launch gate.

When does demand for gengar onesie peak?

Demand peaks in Sep–Oct–Nov; the busiest month runs 8.2× the quietest.

What does it cost to enter the gengar onesie niche?

Listings span $9.42–$101.93; the average listing price is $34.26 (sweet spot $15–$100). The average incumbent carries 684 reviews — the moat a new listing must climb.

Gengar Onesie

Skip it

Weak search conversion (0.4%) — this niche doesn't clear our bar today.

Avg price

Incredible$34.26

avg listing price — sweet spot $15–$100

Price range

Great$9.42–$101.93

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

Review moat

Good683.52

avg incumbent reviews — the moat a new listing must climb

Brand share

Good66%

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

Competition

Good48%

top-5 click share — leaders hold, buyers still browse

Growth

Okay+7.6%

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

Returns

Bad5.0%

return rate — above 5% kills the launch gate

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Market size

Bad$26K

$26K/yr · 196K searches

Conversion

Bad0.4%

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

Signals High Returns

Is gengar onesie profitable on Amazon?

According to Flapen's Amazon United States niche tracking, gengar onesie is a $26K/yr Amazon United States market (196K searches/yr). The top 5 brands hold 66% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 40/100.

Data updated Jul 21, 2026 · scored weekly · How we score niches

gengar onesie market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 2K–2K; avg 0–100/product
Revenue / yr: $51K–$69K; units × avg price
Conversion rate: 0.4%
Avg BSR: #18,936
Page quality: 0%
Prime: 97%
Sponsored: 77%
Out of stock: 10.5%
Avg brand age: 36 months
Avg seller age: 167 days

Competition: brands, sellers & click share

The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.

Brands

20 rising

Sellers

Top-5 brand share

66%

Top 20: 100%

Top-5 click share

48%

Top 20: 85%

Open market

30%

Bioworld31%
Opposuits13%
SAZAC8%
Pokémon8%
MEOWCOS.COM6%
Generic4%

gengar onesie demand & seasonality

Weekly Amazon search volume, last 104 weeks — +7.6% search growth over the last 90 days.

Peak months: Sep, Oct, Nov · busiest ÷ quietest = 8.2×

Open Trend

Top gengar onesie search terms shoppers use

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

gengar hat37K/yr +27.8%0.7% conv.
gengar onesie47K/yr -4.1%0.3% conv.
gengar costume60K/yr +43.4%0.1% conv.
gengar beanie23K/yr -27.9%0.2% conv.
gengar onesie adult10K/yr +16.4%0.3% conv.
gengar pajamas9K/yr -2.8%0.4% conv.
gengar costume women4K/yr -16.7%0.3% conv.
gengar costume adult6K/yr +56.2%0.0% conv.

All search terms

Top gengar onesie 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★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Bioworld Pokemon Gengar Embroidered Snapback Cap Hat Licensed Purple

Bioworld$30.054.9★761 rev

Opposuits Adult Unisex Gengar Onesie - Pokmon One-piece Pajamas - Loose Fit - Including Pockets - Purple

Opposuits$50.934.4★157 rev

MEOWCOS Women Bodysuit Onesie Pajamas Romper Bodysuit Plush Hooded and Socks with Belt and Tail

MEOWCOS.COM$66.454.6★104 rev

Pokemon Adult Gengar Embroidered Precurve Snapback Hat For Men and Women

Bioworld$25.354.8★178 rev

SAZAC Gengar Pokemon Kigurumi - Onesie Jumpsuit Halloween Costume (Purple)

SAZAC$101.934.8★479 rev

Newest

by launch date

Pokmon Gengar Purple Laplander Knit Cap

Bioworld$24.8210 rev

9mo ago

Pokemon Tracksuit Set Boys Teens 2 Pc Hoodie Joggers Anime Hoodie Sweatpants Kids Clothes Teen Apparel Gifts for Boys (5-6 Years Purple Gengar)

Pokémon$41.03597 rev

11mo ago

Anime Beanie Knit Hats Winter Soft Headwear Funny Hat for Men Women Unisex (US Alpha One Size White)

Generic$14.539 rev

11mo ago

Pokemon One-Piece Pajamas for Boys Teens Fleece Jumpsuit with Hood Pikachu Snorlax Gengar Loungewear PJs Gifts for Boys (11-12 Years Purple Gengar)

Pokémon$38.084,548 rev

1y ago

KZLFSHI Adult Onesie Pajamas Cosplay Halloween Costume Animals Sleepwear Jumpsuit Costume for Women Men (US Alpha X-Large Regular Regular black)

KZLFSHI$33.7264 rev

1y ago

What reviews say buyers love and hate about gengar onesie

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

What buyers love

Size-Overall21%

“Good fit, size and shape stay intact, and I get a lot of compliments”

Quality-Overall17%

“Great quality and the perfect accessory to complete my festival fit”

Comfort-Overall7%

“It is so comfortable”

Advertised Vs Actual Product7%

“Just as described”

Color6%

“the color is fantastic”

Warmth5%

“i love this cat beanie, its super cute and warm”

Value For Money5%

“Great value for your money”

Gifting Purpose5%

“Cute present”

Shape/Style3%

“love the style”

Thickness3%

“Good quality, thicker than expected”

What buyers complain about

Size-Overall38%

“Too small”

Material Quality12%

“Didn't like material was off to hat was crooked”

Durability12%

“after 2 days of use it ripped”

Value For Money5%

“Overpriced”

Stitch/Finish/Polish2%

“Some stitches were irregular”

Advertised Vs Actual Product2%

“I wish they depicted these features”

Length2%

“they are 8 inches too long”

Hard Feel2%

“so that part is a little rough for someone with long hair”

Machine Wash Suitability2%

“Only thing I wasn't prepared for is that it frays if you machine cycle wash it”

Top return reasons

Size-Overall68%

Advertised Vs Actual Product6%

Shape/Style5%

Length4%

Material Quality3%

Quality-Overall1%

Value For Money1%

Stitch/Finish/Polish1%

Color1%

Thin1%

Common gengar onesie questions

Is gengar onesie profitable to sell on Amazon United States?: The niche generates $26K/yr across 31 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +7.6%. Flapen's verdict: Skip it (40/100).
How competitive is the gengar onesie niche?: 20 brands and 42 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 66% of demand.
What do buyers complain about in gengar onesie?: Top complaints mined from reviews: Size-Overall, Material Quality, Durability. The return rate is 5.0% — above our launch gate.
When does demand for gengar onesie peak?: Demand peaks in Sep–Oct–Nov; the busiest month runs 8.2× the quietest.
What does it cost to enter the gengar onesie niche?: Listings span $9.42–$101.93; the average listing price is $34.26 (sweet spot $15–$100). The average incumbent carries 684 reviews — the moat a new listing must climb.