---
title: "Men in Black Costume — £159K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/toys-games/men-in-black-costume"
last_updated: "2026-07-31T14:18:00.007Z"
locale: en
meta:
description: "Niche score 43/100 · £159K/yr market · 365K searches/yr · £11.36 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 43/100 · £159K/yr market · 365K searches/yr · £11.36 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Men in Black Costume — £159K/yr Amazon UK Niche (2026) - Flapen"
---
# **men in black costume**
**Skip it**
Soft demand (-42.3% this quarter) — this niche doesn't clear our bar today.
Market size 33Growth 4Conversion 48Competition 25Returns 82Price range 31Avg price 45Brand share 23Review moat 97Quality gap 95
**Review moat**
**Incredible****62.13**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Incredible****4.0★**
avg incumbent rating — lower means beatable quality
**Returns**
**Great****1.6%**
return rate — above 5% kills the launch gate
**Conversion**
**Okay****3.8%**
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**
**Bad****71%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****91%**
top-5 brand share — brand-locked demand
**Growth**
**Bad****-42.3%**
90-day search growth — must beat 0% to launch
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=uk&signal=low_review_barrier "Top brand's reviews < 500") [** Quality Gap**](https://flapen.com/research/niches?market=uk&signal=quality_gap "Avg rating < 4.0")
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 ~~](https://flapen.com/research/methodology)
## **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**
**14**
**Top-5 brand share**
**91%**
Top 20: 100%
**Top-5 click share**
**71%**
Top 20: 100%
**Open market**
**5%**
- 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.
125K75KSpike '25Spike '26Oct '25Dec '25Jan '26Mar '26Apr '26May '26Jul '26
[**Open Trend **](https://flapen.com/research/uk/toys-games/men-in-black-costume/trend)
## **Top men in black costume search terms**
- **men in black costume**144K/yr-27.4%3.4% conv. - **men in black costume accessories**107K/yr-46.8%5.3% conv. - **spy costume**7K/yr-51.9%0.4% conv. - **men in black costume women**8K/yr-31.3%1.2% conv. - **men in black accessories**30K/yr-40.9%4.1% conv. - **secret agent costume**4K/yr-35.8%0.2% conv. - **mib costume**32K/yr-62.9%1.4% conv. - **men in black costume kids**6K/yr-75.0%1.8% conv. - **mib accessories**5K/yr-38.3%3.0% conv. - **men in black costume accessories badge**4K/yr-47.5%0.0% conv. [**All search terms **](https://flapen.com/research/uk/toys-games/men-in-black-costume/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.
0%10%£16K20%£32K30%£48K40%£64K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**MENS BLACK SUIT FANCY DRESS COSTUME - SECRET AGENTS BLACK SUIT FOR FANCY DRESS COSTUMES BLACK GANGSTER SUIT (SMALL)**I LOVE FANCY DRESS**£18.97**3.4★25 rev](https://www.amazon.co.uk/dp/B06XJ6XWD4) [2**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**£12.51**4.3★85 rev](https://www.amazon.co.uk/dp/B0F1TRNJ4T) [3**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**£7.06**4.7★20 rev](https://www.amazon.co.uk/dp/B0FY2LS8NP) [4**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**£11.98**4.3★85 rev](https://www.amazon.co.uk/dp/B0FHK12QTS) [5**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**£9.98**4.3★382 rev](https://www.amazon.co.uk/dp/B0DJNTYJJ8)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**iSharely Secret Agent Costume Accessories Set Spy Fancy Dress Kit (A)**iSharely**£5.13**1 rev6mo ago](https://www.amazon.co.uk/dp/B0GFP7Y5GQ) [**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**£7.07**0 rev8mo ago](https://www.amazon.co.uk/dp/B0G1FTRK7Z) [**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**£8.89**3 rev8mo ago](https://www.amazon.co.uk/dp/B0G1FTKX9M) [**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**£7.06**20 rev9mo ago](https://www.amazon.co.uk/dp/B0FY2LS8NP) [**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**£7.41**17 rev10mo ago](https://www.amazon.co.uk/dp/B0FR4PTQCN)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**iSharely Secret Agent Costume Accessories Set Spy Fancy Dress Kit (A)**iSharely**£5.13**4.0★**▲ 981%**](https://www.amazon.co.uk/dp/B0GFP7Y5GQ) [**MENS BLACK SUIT FANCY DRESS COSTUME - SECRET AGENTS BLACK SUIT FOR FANCY DRESS COSTUMES BLACK GANGSTER SUIT (MEDIUM)**I LOVE FANCY DRESS**£19.30**3.4★**▲ 973%**](https://www.amazon.co.uk/dp/B06XJ9D8DN) [**Kids Secret Agent Fancy Dress Costume. Black Suit. 2Pc Black Suit With Jacket & Trousers. Perfect For Science Fiction Movie Themed & Halloween Fancy Dress Costumes. Large**I LOVE FANCY DRESS**£12.39**3.6★**▲ 644%**](https://www.amazon.co.uk/dp/B01MT3K0DI) [**MENS BLACK SUIT FANCY DRESS COSTUME - SECRET AGENTS BLACK SUIT FOR FANCY DRESS COSTUMES BLACK GANGSTER SUIT (SMALL)**I LOVE FANCY DRESS**£18.97**3.4★**▲ 450%**](https://www.amazon.co.uk/dp/B06XJ6XWD4) [**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**£8.89**5.0★**▲ 425%**](https://www.amazon.co.uk/dp/B0G1FTKX9M)
**~~View all trending →~~**
## **What buyers say about men in black costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**67%
*“Quality items looking very real”*
**Value For Money**27%
*“Really good value”*
**Fun/Entertainment Experience**7%
*“Had great fun at a Halloween event”*
### **What buyers complain about **
**Smell**50%
*“When it came it was smelling the same as the kid one”*
**Size-Overall**50%
*“But it was so small I had to reorder one small adult size”*
### **Top return reasons **
**Size-Overall**51%
**Quality-Overall**14%
**Material Quality**12%
**Defective Material/Parts**5%
**Thin**4%
**Arm Fit**4%
**Inflation/Deflation**2%
**Functionality-Overall**2%
**Durability**2%
**Length**2%
## **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.
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