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49

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

Great173.39

avg incumbent reviews — the moat a new listing must climb

Quality gap

Great4.1★

avg incumbent rating — lower means beatable quality

Avg price

Great£18.83

avg listing price — sweet spot $15–$100

Competition

Great39%

top-5 click share — an open shelf

Brand share

Good62%

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

Okay3.7%

return rate — above 5% kills the launch gate

Conversion

Bad1.8%

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

Is 1920s mens costume profitable on Amazon?

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

1920s mens costume market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.
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: brands, sellers & click 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%

1920s mens costume demand & seasonality

Weekly Amazon search volume, last 86 weeks — -27.4% search growth over the last 90 days.
7K5KSpike '25Prime Day '25Spike '26JanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Jan, Oct, Nov, Dec · busiest ÷ quietest = 3.8×

Top 1920s mens costume search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.
  • 1920s accessories for men31K/yr
  • 1920s mens fancy dress18K/yr
  • gangster costume28K/yr
  • great gatsby costume men19K/yr
  • gatsby accessories men10K/yr
  • 1920s mens costume7K/yr
  • gangster fancy dress3K/yr
All search terms

Top 1920s mens costume 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.

0%3%£1K6%£2K9%£4K12%£5K1101001K10K Reviews — right = deep review moat Market 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.

What reviews say buyers love and hate about 1920s mens costume

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

What buyers love

Quality-Overall32%

“Excellent product”

Value For Money26%

“Worth the money”

Size-Overall9%

“Good fit”

Correct Contents6%

“Good selection of items”

Comfort-Overall4%

“Comfort”

Advertised Vs Actual Product4%

“Everything is advertised”

Color3%

“Nice colours”

Shape/Style3%

“Nice style”

Design-Overall3%

“Nice design”

Stretchability/Expandability/Elasticity1%

“stretchiness are perfect”

What buyers complain about

Size-Overall29%

“too small”

Quality-Overall24%

“Poor quality”

Color7%

“This was a bit of a compromise as I was looking for something a little more subtle in colour”

Portability4%

“But caution as the sizes don't cater for the more portly guy”

Defective Material/Parts4%

“This product although has a lot of pieces isnt value for money”

Durability4%

“ripped on putting it on so is absolutely no use”

Advertised Vs Actual Product4%

“Not as advertised”

Strength4%

“Bit flimsy and cheap looking”

Shoulder Fit4%

“To big on the shoulders”

Thin2%

“Suit is thin material so will have to wear something under”

Top return reasons

Size-Overall56%
Quality-Overall22%
Color6%
Shape/Style2%
Advertised Vs Actual Product2%
Chest Fit2%
Thin2%
Shoulder Fit2%
Wrinkles2%
Product Condition1%

Common 1920s mens costume 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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