Sherlock Holmes Costume
FailDemand is soft, at -38.2% this quarter, so Sherlock Holmes Costume is a Fail.
- Flapen Score
- 36 / 100Ranks 14,149 of 16,930 Clothing, Shoes & Jewelry niches · −9 vs the category median of 4536
- Market size
- $66K/yr72K searches / yr
- 90-day growth
- -38.2%search demand this quarter
- Competition
- 78%top-5 click share · 10 brands · 12 sellers
Flapen Score
Sherlock Holmes Costume against its category
The dotted line is the Clothing, Shoes & Jewelry average. Past it, Sherlock Holmes Costume is stronger. Inside it, weaker.
Market
The Sherlock Holmes Costume market on Amazon at a glance
Shoppers on Amazon United States searched for Sherlock Holmes Costume 72K times last year and spent an estimated $66K. The top 5 brands take 83% of clicks. Demand peaks in Sep–Oct–Nov. Flapen scores it 36 out of 100, a Fail.
01 · Demand
An estimated 2.9% of those searches ended in a purchase.
Shoppers searched for this 72K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 2.9% of those searches ended in a purchase. Searches in the last 90 days moved -38.2% against the 90 days before. Searches, conversion and average price together put the market at an estimated $66K a year.
- Searches, last 12 months
- 72K
- Growth, 90 days vs prior 90
- -38.2%
- Conversion, latest week
- 2.9%
- Market size, estimated
- $66Ka year
- Peak month
- October15.1× the quietest month
- Top search term
- sherlock holmes costume61K searches a year
02 · Price
A sale here is worth $31.10.
Listings sell for $31.10 on average, from $16.80 to $54.12. Amazon reports units sold in ranges. This niche sold 2K to 2K a year. The average listing sells 0 to 100 of them. At $31.10 that is $0 to $3K a year per listing.
- Average price
- $31.10inside the $15 to $100 sweet spot
- Price range
- $16.80–$54.12
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 2K–2K
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$3K
- Returns
- 7.6%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
71% of listings pay for placement with sponsored ads. 86% ship with Prime. On an average day, 9.5% of listings are out of stock. The average listing ranks #2,670 within Accessories. It carries 73 reviews at 4.32 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 71%
- Prime listings
- 86%
- Out of stock, average day
- 9.5%
- Average rank
- #2,670in Accessories
- Average rating
- 4.32 starsAmazon United States average 4.42 stars
- Average reviews
- 73per listing
- Listings tracked
- 14
04 · Newcomers
0 of last year's 3 launches cleared the first-year sales bar.
3 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 50 months on average, so the names here are settling in.
- Launched, last 12 months
- 3
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 50 months
Products
Top Sherlock Holmes Costume products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 17, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Colorful House Cloak Medieval Detective Cosplay Costume Short Cape for Adult Men and Women Role Play(Khaki 25.59)
- Price
- $29.53
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 1y ago

Adults Sherlock Holmes Hat & Poncho Costume Kit Classic Detective Outfit Standard
- Price
- $31.16
- Rating
- 4.8/5
- Reviews
- 8
- Age
- 2y ago

wevgbv Detective Costume 11pc Accessories Set Detective Hat Dress up Costume for Adults Men Women Halloween Spy Costumes
- Price
- $20.94
- Rating
- 4.6/5
- Reviews
- 59
- Age
- 1y ago

fun shack Mens Detective Costume Adult Detective Costume Men Detectives Halloween Costume Private Investigator Costume Medium
- Price
- $53.37
- Rating
- 3.8/5
- Reviews
- 295
- Age
- 13y ago

GVVJYXD Detective Costume Accessories Set Outfit Accessories For Adults Women Men with Detective Hat for Dress Up
- Price
- $16.80
- Rating
- 3.0/5
- Reviews
- 6
- Age
- 1y ago
Trending
estimated 90-day click momentum
Adults Detective Costume Mens Womens Victorian Outfit Inverness Cape Deerstalker Hat for Halloween Cosplay Lace L
- Price
- $28.76
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 3mo ago

Univafeli Adults Detective Costume Mens Womens Victorian Outfit Inverness Cape Deerstalker Hat for Halloween Cosplay Button L
- Price
- $29.18
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 3mo ago

RUEGGVAT 14 PCS Adult Detective Costume Accessories Set Classic Sleuth Spy Kit with Deerstalker Hat Magnifying Glass Bow Tie Pocket Watch Mustache & Gloves for Halloween Cosplay Mystery Party
- Price
- $18.92
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 3mo ago

Colorful House Cloak Medieval Detective Cosplay Costume Short Cape for Adult Men and Women Role Play(Khaki 25.59)
- Price
- $29.53
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 1y ago

Adults Sherlock Holmes Hat & Poncho Costume Kit Classic Detective Outfit Standard
- Price
- $31.16
- Rating
- 4.8/5
- Reviews
- 8
- Age
- 2y ago
Newest
by launch date
RUEGGVAT 14 PCS Adult Detective Costume Accessories Set Classic Sleuth Spy Kit with Deerstalker Hat Magnifying Glass Bow Tie Pocket Watch Mustache & Gloves for Halloween Cosplay Mystery Party
- Price
- $18.92
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 3mo ago

Univafeli Adults Detective Costume Mens Womens Victorian Outfit Inverness Cape Deerstalker Hat for Halloween Cosplay Button L
- Price
- $29.18
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 3mo ago

Adults Detective Costume Mens Womens Victorian Outfit Inverness Cape Deerstalker Hat for Halloween Cosplay Lace L
- Price
- $28.76
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 3mo ago

wevgbv Detective Costume 11pc Accessories Set Detective Hat Dress up Costume for Adults Men Women Halloween Spy Costumes
- Price
- $20.94
- Rating
- 4.6/5
- Reviews
- 59
- Age
- 1y ago

ERDOGLY Detective Costume Accessories Set Detective Outfit Accessories for Adults Men Women with Detective Hat Magnifying Glass Black Bow Tie for Halloween Dress Up Brown
- Price
- $19.56
- Rating
- 4.8/5
- Reviews
- 19
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 78% of clicks. A locked shelf that new listings rarely crack.
Brands
10 falling
Sellers
12
Est. top-5 brand share
83%
Top 20: 100%
Est. top-5 click share
78%
Top 20: 100%
Open market
12%
- Fun Costumes31%
- Colorful House30%
- fun shack10%
- wevgbv8%
- GVVJYXD6%
- AGCOAH5%
- Open — no brand owns it (4 brands, 12%)
Demand
Sherlock Holmes Costume search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Sep, Oct, Nov · busiest ÷ quietest = 15.1×
Search terms
Top Sherlock Holmes Costume search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- sherlock holmes costume61K/yr
- sherlock holmes costume adult7K/yr
- sherlock holmes coat4K/yr
Reviews and returns
What reviews say buyers love and hate about Sherlock Holmes Costume
We read the reviews and the return reasons for every product selling here.
“A bit over priced”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
15 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Sherlock Holmes Costume questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









