Is men in black costume profitable to sell on Amazon United Kingdom?

The niche generates £159K/yr across 16 tracked products. 0 of 6 products launched in the last 360 days are still selling. 90-day search growth is -42.3%. Flapen's verdict: Skip it (43/100).

How competitive is the men in black costume niche?

8 brands and 14 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 91% of demand.

What do buyers complain about in men in black costume?

Top complaints mined from reviews: Smell, Size-Overall. The return rate is 1.6%.

What does it cost to enter the men in black costume niche?

Listings span £5.13–£19.49; the average listing price is £11.36 (sweet spot $15–$100). The average incumbent carries 62 reviews — the moat a new listing must climb.

men in black costume

Skip it

Soft demand (-42.3% this quarter) — this niche doesn't clear our bar today.

Review moat

Incredible62.13

avg incumbent reviews — the moat a new listing must climb

Quality gap

Incredible4.0★

avg incumbent rating — lower means beatable quality

Returns

Great1.6%

return rate — above 5% kills the launch gate

Conversion

Okay3.8%

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

Avg price

Okay£11.36

avg listing price — sweet spot $15–$100

Market size

Okay£159K

£159K/yr · 365K searches

Price range

Okay£5.13–£19.49

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

Competition

Bad71%

top-5 click share — a locked-up shelf

Brand share

Bad91%

top-5 brand share — brand-locked demand

Growth

Bad-42.3%

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

Signals Low Review Barrier Quality Gap

According to Flapen's Amazon United Kingdom niche tracking, men in black costume is a £159K/yr Amazon United Kingdom market (365K searches/yr). The top 5 brands hold 91% of demand. Verdict: Skip it — 43/100.

Data updated Jul 29, 2026 · scored weekly · How we score niches

men in black costume market data

Units sold / yr: 10K–13K; avg 250–500/product
Revenue / yr: £114K–£142K; units × avg price
Conversion rate: 3.8%
Avg BSR: #1,247
Page quality: 0%
Prime: 63%
Sponsored: 94%
Out of stock: 19.1%
Avg brand age: 35 months
Avg seller age: 198 days

Competition & brand share

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 falling

Sellers

Top-5 brand share

91%

Top 20: 100%

Top-5 click share

71%

Top 20: 100%

Open market

I LOVE FANCY DRESS36%
Glirop32%
FUIPVGI8%
Kyndara8%
Horolam7%
Beamely4%
Open — no brand owns it (2 brands, 5%)

Demand

Weekly Amazon search volume, last 40 weeks — -42.3% search growth over the last 90 days.

Open Trend

Top men in black costume search terms

men in black costume144K/yr -27.4%3.4% conv.
men in black costume accessories107K/yr -46.8%5.3% conv.
spy costume7K/yr -51.9%0.4% conv.
men in black costume women8K/yr -31.3%1.2% conv.
men in black accessories30K/yr -40.9%4.1% conv.
secret agent costume4K/yr -35.8%0.2% conv.
mib costume32K/yr -62.9%1.4% conv.
men in black costume kids6K/yr -75.0%1.8% conv.
mib accessories5K/yr -38.3%3.0% conv.
men in black costume accessories badge4K/yr -47.5%0.0% conv.

All search terms

Top men in black costume products on Amazon

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★)1 product 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

MENS BLACK SUIT FANCY DRESS COSTUME - SECRET AGENTS BLACK SUIT FOR FANCY DRESS COSTUMES BLACK GANGSTER SUIT (SMALL)

I LOVE FANCY DRESS£18.973.4★25 rev

10Pcs Agent Costume Accessories Set Secret Agent Dress Up Kit with ID Holders Black Ties Sunglasses Earpieces Inflatable Green Aliens for Women Men Halloween Cosplay Carnival Fancy Dress Party Props

Glirop£12.514.3★85 rev

FUIPVGI 7 Pack Agent Costume Accessories Set Secret Service Costume Spy Costume Accessories with Green Inflatable Aliens Sunglasses ID Card Tie Card Holder Fake Earpiece for Cosplay Party (Black)

FUIPVGI£7.064.7★20 rev

Glirop Agent Costume Accessories Set Secret Agent Dress Up Kit with ID Holders Black Ties Sunglasses Earpieces Inflatable Green Aliens for Women Men Halloween Cosplay Carnival Fancy Dress

Glirop£11.984.3★85 rev

Horolam Agent Costume Accessories Secret Service Costume Set Spy Costume Accessories with Black Sunglasses Zip Tie Earpiece ID Card and Card Holder for Men Women Kids for Cosplay Party (Agent)

Horolam£9.984.3★382 rev

Newest

by launch date

iSharely Secret Agent Costume Accessories Set Spy Fancy Dress Kit (A)

iSharely£5.131 rev

6mo ago

Agent Costume Accessories Set Secret Agent Dress-Up Kit with ID Card Black Sunglasses Fake Earpiece Zip Tie Inflatable Green Alien Ring and StickersPerfect for Halloween Cosplay Party Carnival

Beamely£7.070 rev

8mo ago

Double Agent Costume Accessories Set Secret Agent Dress-Up Kit with ID Cards Black Sunglasses Fake Earpieces Zip Ties Inflatable Green Aliens Rings Stickers Ideal for Halloween Cosplay Party Carnival

Beamely£8.893 rev

8mo ago

FUIPVGI 7 Pack Agent Costume Accessories Set Secret Service Costume Spy Costume Accessories with Green Inflatable Aliens Sunglasses ID Card Tie Card Holder Fake Earpiece for Cosplay Party (Black)

FUIPVGI£7.0620 rev

9mo ago

Kyndara 6Pcs Agent Costume Accessory Set Secret Security Guard Outfit Kit with Sunglasses Headphones Ties ID Card Inflatable Props Green Aliens for Women Men Halloween MIB Cosplay Theme Party

Kyndara£7.4117 rev

10mo ago

What buyers say about men in black costume

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

What buyers love

Quality-Overall67%

“Quality items looking very real”

Value For Money27%

“Really good value”

Fun/Entertainment Experience7%

“Had great fun at a Halloween event”

What buyers complain about

Smell50%

“When it came it was smelling the same as the kid one”

Size-Overall50%

“But it was so small I had to reorder one small adult size”

Top return reasons

Size-Overall51%

Quality-Overall14%

Material Quality12%

Defective Material/Parts5%

Thin4%

Arm Fit4%

Inflation/Deflation2%

Functionality-Overall2%

Durability2%

Length2%

Common questions

Is men in black costume profitable to sell on Amazon United Kingdom?: The niche generates £159K/yr across 16 tracked products. 0 of 6 products launched in the last 360 days are still selling. 90-day search growth is -42.3%. Flapen's verdict: Skip it (43/100).
How competitive is the men in black costume niche?: 8 brands and 14 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 91% of demand.
What do buyers complain about in men in black costume?: Top complaints mined from reviews: Smell, Size-Overall. The return rate is 1.6%.
What does it cost to enter the men in black costume niche?: Listings span £5.13–£19.49; the average listing price is £11.36 (sweet spot $15–$100). The average incumbent carries 62 reviews — the moat a new listing must climb.