---
title: "1920s Mens Costume — £40K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/toys-games/1920s-mens-costume"
last_updated: "2026-07-31T08:12:21.210Z"
locale: en
meta:
description: "Niche score 49/100 · £40K/yr market · 116K searches/yr · £18.83 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 49/100 · £40K/yr market · 116K searches/yr · £18.83 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "1920s Mens Costume — £40K/yr Amazon UK Niche (2026) - Flapen"
---
# **1920s mens costume**
**Skip it**
A small market ($40K/yr) — this niche doesn't clear our bar today.
Market size 10Growth 11Conversion 23Competition 76Returns 42Price range 65Avg price 85Brand share 71Review moat 91Quality gap 90
**Review moat**
**Great****173.39**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Great****4.1★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Great****£18.83**
avg listing price — sweet spot $15–$100
**Competition**
**Great****39%**
top-5 click share — an open shelf
**Brand share**
**Good****62%**
top-5 brand share — brands hold most of the demand
**Price range**
**Good****£3.87–£134.97**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Okay****3.7%**
return rate — above 5% kills the launch gate
**Conversion**
**Bad****1.8%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-27.4%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****£40K**
£40K/yr · 116K searches
According to Flapen's Amazon United Kingdom niche tracking, 1920s mens costume is a £40K/yr Amazon United Kingdom market (116K searches/yr). The top 5 brands hold 62% of demand. Demand peaks in Jan–Oct–Nov–Dec. Verdict: Skip it — 49/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **1920s mens costume market data**
- **Units sold / yr**
- **3K–3K**
- avg 0–100/product
- **Revenue / yr**
- **£47K–£56K**
- units × avg price
- **Conversion rate**
- **1.8%**
- **Avg BSR**
- **#815**
- **Page quality**
- **0%**
- **Prime**
- **90%**
- **Sponsored**
- **75%**
- **Out of stock**
- **10.9%**
- **Avg brand age**
- **40 months**
- **Avg seller age**
- **195 days**
## **Competition & brand share**
Clicks spread well past the top 5 (39% combined) — an open shelf where new products get seen.
**Brands**
**28 **—flat
**Sellers**
**48**
**Top-5 brand share**
**62%**
Top 20: 94%
**Top-5 click share**
**39%**
Top 20: 73%
**Open market**
**33%**
- Morph24% - Glirop13% - Dazzroi12% - Grantop10% - Barry.Wang4% - Kyndara4%
## **Demand & seasonality**
Weekly Amazon search volume, last 86 weeks — -27.4% search growth over the last 90 days.
7K5KSpike '25Prime Day '25Spike '26 seasonJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Jan, Oct, Nov, Dec · busiest ÷ quietest = 3.8×
[**Open Trend **](https://flapen.com/research/uk/toys-games/1920s-mens-costume/trend)
## **Top 1920s mens costume search terms**
- **1920s accessories for men**31K/yr-35.2%2.9% conv. - **1920s mens fancy dress**18K/yr-6.3%1.0% conv. - **gangster costume**28K/yr-16.5%0.7% conv. - **great gatsby costume men**19K/yr-45.4%1.9% conv. - **gatsby accessories men**10K/yr-43.8%3.1% conv. - **1920s mens costume**7K/yr-24.5%1.4% conv. - **gangster fancy dress**3K/yr+18.4%0.5% conv. [**All search terms **](https://flapen.com/research/uk/toys-games/1920s-mens-costume/search-terms)
## **Top 1920s mens 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%3%£1K6%£2K9%£4K12%£5K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**Morph Mens Gangster Costume Mobster Suit Mafia Boss Outfit 1920s Pinstripe Suit for Halloween Parties X-Large Black**Morph**£25.30**4.0★227 rev](https://www.amazon.co.uk/dp/B0C62B9NM7) [2**Morph Mens Gangster Costume Mobster Suit Mafia Boss Outfit 1920s Pinstripe Suit for Halloween Parties Large**Morph**£26.32**4.0★227 rev](https://www.amazon.co.uk/dp/B0C626T3H4) [3**Grantop 1920s Gatsby Costume for Men 1920s Men Fancy Dress Accessories Set Retro Gangster Costume Kit with Panama Hat Elastic Suspenders Mustache Pocket Watch Cigar (Style-1)**Grantop**£9.67**4.4★169 rev](https://www.amazon.co.uk/dp/B0BRCV2G5B) [4**Glirop 13Pcs 1920s Gatsby Costume Set for Men Gentleman Roaring 20s Accessories Kit with Hat Suspenders Pocket Watch Bow Tie Beards Cuffs Tie for Adult Halloween Theme Parties Fancy Dress (Blue)**Glirop**£10.59**3.7★33 rev](https://www.amazon.co.uk/dp/B0F86VTHQR) [5**1920s Mens Costume Accessories Set Vintage Gentleman Gatsby Gangster Fancy Dress with Adjustable Metal Folding Cane Pocket Watch Pre-tied Bow Tie Glasses Suspender for Roaring 20s Themed Party**Glirop**£14.50**3.8★32 rev](https://www.amazon.co.uk/dp/B0DZ25CZSP)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Fictoria Mens 1920s Gangster Costume Accessories Set 15 Pcs Gatsby Fancy Dress Kit with Fedora Hat Bow Tie Suspenders Pocket Watch Stick On Mustaches Roaring 20s Party Outfit for Adults**Fictoria**£11.53**1 rev3mo ago](https://www.amazon.co.uk/dp/B0GTZY4G14) [**Soireeparty 1920s Fancy Dress Accessories Set - Blue Gangster Hat Kit with Suspenders Bow Tie Glasses Armbands and Moustaches Vintage Costume Outfit for Men Cosplay Theme Party Halloween Carnival**Soireeparty**£8.49**3 rev5mo ago](https://www.amazon.co.uk/dp/B0GK165QD4) [**Dazzroi 1920s Mens Costume Roaring 20s Great Gastby Gangster Outfit with Vest Fedora Hat Pocket Watch Tie for Party Supplies**Dazzroi**£22.49**16 rev6mo ago](https://www.amazon.co.uk/dp/B0GJLKJLBG) [**Dazzroi 1920s Mens Costume Roaring 20s Great Gastby Gangster Outfit with Vest Fedora Hat Pocket Watch Tie for Party Supplies**Dazzroi**£23.01**16 rev6mo ago](https://www.amazon.co.uk/dp/B0GJLGB4B4) [**Dazzroi 1920s Mens Costume Roaring 20s Great Gastby Gangster Outfit with Vest Fedora Hat Pocket Watch Tie for Party Supplies**Dazzroi**£22.86**16 rev6mo ago](https://www.amazon.co.uk/dp/B0GJLG3FC3)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Fictoria Mens 1920s Gangster Costume Accessories Set 15 Pcs Gatsby Fancy Dress Kit with Fedora Hat Bow Tie Suspenders Pocket Watch Stick On Mustaches Roaring 20s Party Outfit for Adults**Fictoria**£11.53**4.0★**▲ 309%**](https://www.amazon.co.uk/dp/B0GTZY4G14) [**Morph Mens Gangster Costume Mobster Suit Mafia Boss Outfit 1920s Pinstripe Suit for Halloween Parties X-Large Black**Morph**£25.30**4.0★**▲ 309%**](https://www.amazon.co.uk/dp/B0C62B9NM7) [**Morph Mens Gangster Costume Mobster Suit Mafia Boss Outfit 1920s Pinstripe Suit for Halloween Parties Medium Black**Morph**£27.02**4.0★**▲ 307%**](https://www.amazon.co.uk/dp/B0DTKGPMM8) [**AUYAO Mens Black Waistcoat Mens Suit Vest Wedding Party Fit Vest Suit 1920s Mens Costume Mens Suits & Blazers Mens Fancy Dress Costume Mens V-Neck Suit Vest Button-up for Waiters Bar Staff(M)**AUYAO**£9.97**3.9★**▲ 303%**](https://www.amazon.co.uk/dp/B0G6KW6M38) [**Dazzroi 1920s Mens Costume Roaring 20s Great Gastby Gangster Outfit with Vest Fedora Hat Pocket Watch Tie for Party Supplies**Dazzroi**£22.86**4.6★**▲ 251%**](https://www.amazon.co.uk/dp/B0GJLG3FC3)
**~~View all trending →~~**
## **What buyers say about 1920s mens costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**32%
*“Excellent product”*
**Value For Money**26%
*“Worth the money”*
**Size-Overall**9%
*“Good fit”*
**Correct Contents**6%
*“Good selection of items”*
**Comfort-Overall**4%
*“Comfort”*
**Advertised Vs Actual Product**4%
*“Everything is advertised”*
**Color**3%
*“Nice colours”*
**Shape/Style**3%
*“Nice style”*
**Design-Overall**3%
*“Nice design”*
**Stretchability/Expandability/Elasticity**1%
*“stretchiness are perfect”*
### **What buyers complain about **
**Size-Overall**29%
*“too small”*
**Quality-Overall**24%
*“Poor quality”*
**Color**7%
*“This was a bit of a compromise as I was looking for something a little more subtle in colour”*
**Portability**4%
*“But caution as the sizes don't cater for the more portly guy”*
**Defective Material/Parts**4%
*“This product although has a lot of pieces isnt value for money”*
**Durability**4%
*“ripped on putting it on so is absolutely no use”*
**Advertised Vs Actual Product**4%
*“Not as advertised”*
**Strength**4%
*“Bit flimsy and cheap looking”*
**Shoulder Fit**4%
*“To big on the shoulders”*
**Thin**2%
*“Suit is thin material so will have to wear something under”*
### **Top return reasons **
**Size-Overall**56%
**Quality-Overall**22%
**Color**6%
**Shape/Style**2%
**Advertised Vs Actual Product**2%
**Chest Fit**2%
**Thin**2%
**Shoulder Fit**2%
**Wrinkles**2%
**Product Condition**1%
## **Common questions**
- **Is 1920s mens costume profitable to sell on Amazon United Kingdom?**
- The niche generates £40K/yr across 51 tracked products. 0 of 19 products launched in the last 360 days are still selling. 90-day search growth is -27.4%. Flapen's verdict: Skip it (49/100).
- **How competitive is the 1920s mens costume niche?**
- 28 brands and 48 sellers compete. The top 5 products take 39% of clicks and top 5 brands hold 62% of demand.
- **What do buyers complain about in 1920s mens costume?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Color. The return rate is 3.7%.
- **When does demand for 1920s mens costume peak?**
- Demand peaks in Jan–Oct–Nov–Dec; the busiest month runs 3.8× the quietest.
- **What does it cost to enter the 1920s mens costume niche?**
- Listings span £3.87–£134.97; the average listing price is £18.83 (sweet spot $15–$100). The average incumbent carries 173 reviews — the moat a new listing must climb.
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