Is grinch costume adult profitable to sell on Amazon United States?

The niche generates $1.1M/yr across 22 tracked products. 0 of 6 products launched in the last 360 days are still selling. 90-day search growth is -31.6%. Flapen's verdict: Skip it (47/100).

How competitive is the grinch costume adult niche?

20 brands and 20 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 70% of demand.

What do buyers complain about in grinch costume adult?

Top complaints mined from reviews: Size-Overall, Color, Value For Money. The return rate is 7.7% — above our launch gate.

When does demand for grinch costume adult peak?

Demand peaks in Nov–Dec; the busiest month runs 176.9× the quietest.

What does it cost to enter the grinch costume adult niche?

Listings span $16.51–$137.41; the average listing price is $43.14 (sweet spot $15–$100). The average incumbent carries 181 reviews — the moat a new listing must climb.

Grinch Costume Adult

Skip it

Soft demand (-31.6% this quarter) — this niche doesn't clear our bar today.

Avg price

Incredible$43.14

avg listing price — sweet spot $15–$100

Review moat

Great180.91

avg incumbent reviews — the moat a new listing must climb

Market size

Great$1.1M

$1.1M/yr · 3.4M searches

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Price range

Good$16.51–$137.41

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

Brand share

Good70%

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

Competition

Okay65%

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

Returns

Bad7.7%

return rate — above 5% kills the launch gate

Conversion

Bad0.8%

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

Growth

Bad-31.6%

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

Signals Low Review Barrier High Returns

Is grinch costume adult profitable on Amazon?

According to Flapen's Amazon United States niche tracking, grinch costume adult is a $1.1M/yr Amazon United States market (3.4M searches/yr). The top 5 brands hold 70% of demand. Demand peaks in Nov–Dec. Verdict: Skip it — 47/100.

Data updated Jul 10, 2026 · scored weekly · How we score niches

grinch costume adult market size & sales

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

Units sold / yr: 25K–30K; avg 500–750/product
Revenue / yr: $1.1M–$1.3M; units × avg price
Conversion rate: 0.8%
Avg BSR: #42,588
Page quality: 0%
Prime: 86%
Sponsored: 59%
Out of stock: 17.9%
Avg brand age: 37 months
Avg seller age: 167 days

Competition: brands, sellers & click share

The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.

Brands

20 falling

Sellers

Top-5 brand share

70%

Top 20: 100%

Top-5 click share

65%

Top 20: 97%

Open market

26%

Fun Costumes26%
ELOOGOOKIN23%
ATESMO11%
Adrinfly5%
Beita4%
WPOZD4%

grinch costume adult demand & seasonality

Weekly Amazon search volume, last 104 weeks — -31.6% search growth over the last 90 days.

Peak months: Nov, Dec · busiest ÷ quietest = 176.9×

Open Trend

Top grinch costume adult search terms shoppers use

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

grinch costume1.7M/yr -21.2%0.4% conv.
grinch costume adult968K/yr -55.5%0.7% conv.
the grinch costume192K/yr -31.0%0.1% conv.
grinch outfit146K/yr -27.2%0.1% conv.
adult grinch costume57K/yr -21.4%0.0% conv.
grinch costume women26K/yr +8.5%0.0% conv.
green monster costume7K/yr +11.6%0.0% conv.
grinch costume men12K/yr -18.0%0.3% conv.
grinch suit50K/yr -22.9%0.6% conv.
grinch costumes27K/yr -8.6%0.2% conv.

All search terms

Top grinch costume adult 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 22 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

ELOOGOOKIN Adults Green Monster Onesie Fancy Furry Santa Jumpsuit Christmas Halloween Cosplay Dress Up Costume for Men Women (Green M)

ELOOGOOKIN$37.963.5★4 rev

Dr. Seuss The Grinch Premium Costume Adult X-Large

Fun Costumes$137.414.5★21 rev

9PCS Christmas Green Monster Costume for Men Adult Santa Costume with Mask Coat Belt Gloves Pants Socks

ATESMO$52.163.5★26 rev

Beita Christmas Deluxe Latex Green Full Head Stole Christmas (Mask-B)

Beita$24.693.9★65 rev

WPOZD Deluxe Christmas Mask with Santa Hat Green Plush Fur Holiday Costume Accessory (Green Mask and Gloves)

WPOZD$34.074.0★12 rev

Newest

by launch date

WPOZD Deluxe Christmas Mask with Santa Hat Green Plush Fur Holiday Costume Accessory (Green Mask and Gloves)

WPOZD$34.0712 rev

8mo ago

ELOOGOOKIN Adults Green Monster Onesie Fancy Furry Santa Jumpsuit Christmas Halloween Cosplay Dress Up Costume for Men Women (Green M)

ELOOGOOKIN$37.964 rev

8mo ago

Adrinfly Christmas Green Big Monster Santa Suit for Adult Deluxe 7 pcs Santa Costume Outerwear With Mask XXL

Adrinfly$35.595 rev

9mo ago

Fun Costumes Adult Grinch Costume Jumpsuit | Attached Hood has Embroidered Face | Christmas Holiday Outfit for Men and Women Medium

Fun Costumes$49.2510 rev

10mo ago

The Grinch One Piece Pajamas for Women Teens S-XL Fleece Jumpsuit With Santa Hat Zip Up Hooded Jump Suit for Teens Adults (L Green Adults)

The Grinch$50.7776 rev

11mo ago

What reviews say buyers love and hate about grinch costume adult

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

What buyers love

Value For Money20%

“Its adorable and affordable”

Quality-Overall19%

“This seems to be a quality made mask”

Fun/Entertainment Experience16%

“Great fun”

Size-Overall13%

“It fit perfectly”

Advertised Vs Actual Product9%

“Exactly as described”

Material Quality6%

“The green PJ -like pants were made of polyester, were lightweight, and were very comfy and warm”

Ease Of Use5%

“Easy to put on”

Product Condition2%

“Washed and dried and still looks new”

Soft Feel2%

“Soft, warm, and quality great”

Washability2%

“Great looking and still looks new after washing”

What buyers complain about

Size-Overall28%

“It does not fit correctly”

Color17%

“also the color is off”

Value For Money13%

“not worth the price if youre just needing a mask”

Quality-Overall13%

“Poor quality”

Comfort-Overall8%

“Uncomfortable to wear”

Advertised Vs Actual Product4%

“Costly and did not resemble picture shown”

Functionality-Overall4%

“It sheds a lot which is my biggest issue with it”

Top return reasons

Size-Overall58%

Advertised Vs Actual Product8%

Quality-Overall5%

Value For Money3%

Material Quality3%

Length3%

Color3%

Thigh Fit3%

Defective Material/Parts3%

Comfort-Overall2%

Common grinch costume adult questions

Is grinch costume adult profitable to sell on Amazon United States?: The niche generates $1.1M/yr across 22 tracked products. 0 of 6 products launched in the last 360 days are still selling. 90-day search growth is -31.6%. Flapen's verdict: Skip it (47/100).
How competitive is the grinch costume adult niche?: 20 brands and 20 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 70% of demand.
What do buyers complain about in grinch costume adult?: Top complaints mined from reviews: Size-Overall, Color, Value For Money. The return rate is 7.7% — above our launch gate.
When does demand for grinch costume adult peak?: Demand peaks in Nov–Dec; the busiest month runs 176.9× the quietest.
What does it cost to enter the grinch costume adult niche?: Listings span $16.51–$137.41; the average listing price is $43.14 (sweet spot $15–$100). The average incumbent carries 181 reviews — the moat a new listing must climb.