---
title: "Oppenheimer Costume — $0/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/oppenheimer-costume"
last_updated: "2026-08-11T22:24:17.688Z"
locale: en
meta:
description: "Niche score 26/100 · $0/yr market · 5K searches/yr · $49.11 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 26/100 · $0/yr market · 5K searches/yr · $49.11 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Oppenheimer Costume — $0/yr Amazon US Niche (2026) - Flapen"
---
# **oppenheimer costume**
**Skip it**
A small market ($0/yr) — this niche doesn't clear our bar today.
Market size 0Growth 35Conversion 0Competition 0Returns 0Price range 95Avg price 94Brand share 0Review moat 68Quality gap 82
**Price range**
**Incredible****$22.76–$99.20**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$49.11**
avg listing price — sweet spot $15–$100
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****798.33**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Okay****+7.9%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$0**
$0/yr · 5K searches
**Conversion**
**Bad****0.0%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Returns**
**Bad****19.6%**
return rate — above 5% kills the launch gate
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, oppenheimer costume is a $0/yr Amazon United States market (5K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Oct–Nov. Verdict: Skip it — 26/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **oppenheimer costume market data**
- **Units sold / yr**
- **100–250**
- avg 0–100/product
- **Revenue / yr**
- **$5K–$12K**
- units × avg price
- **Conversion rate**
- **0.0%**
- **Avg BSR**
- **#317**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **12.2%**
- **Avg brand age**
- **50 months**
- **Avg seller age**
- **218 days**
## **Competition & brand share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**3 **▲rising
**Sellers**
**4**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- Tiff-K56% - SATINIOR30% - Fxzpiodi14% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 76 weeks — +7.9% search growth over the last 90 days.
2K1KSpike '24Spike '25Spike '26 seasonSepOctDecJanMaySepOctNovMarAprMay
Peak months: Oct, Nov · busiest ÷ quietest = 72.8×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/oppenheimer-costume/trend)
## **Top oppenheimer 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%15%$030%$045%$060%$0101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 3 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Tiff-K Wide Brim Felt Fedora Hat Halloween Cosplay Props Costume Accessory Panama Outback Hat for Men Women brown**Tiff-K**$25.36**4.5★56 rev](https://www.amazon.com/dp/B0C64VDT61) [2**SATINIOR 1920s Old Men Costume Roaring Retro Accessories Set Gangster Hat Bow Tie Pocket Watch Suspender Glass Beard Tie Clip(Brown Simple Style)**SATINIOR**$22.76**4.0★1,838 rev](https://www.amazon.com/dp/B098K5NJWB) [3**Retro Herringbone Tweed Suits for Men 3 Pieces Prom Suit Set Classic Tuxedo Slim Fit Mens Suits Formal Autumn Winter Jacket Pants Set Dark Brown S**Fxzpiodi**$99.20**4.1★501 rev](https://www.amazon.com/dp/B0CZNXC4GZ)
### **Newest**
by launch date
[**Retro Herringbone Tweed Suits for Men 3 Pieces Prom Suit Set Classic Tuxedo Slim Fit Mens Suits Formal Autumn Winter Jacket Pants Set Dark Brown S**Fxzpiodi**$99.20**501 rev2y ago](https://www.amazon.com/dp/B0CZNXC4GZ) [**Tiff-K Wide Brim Felt Fedora Hat Halloween Cosplay Props Costume Accessory Panama Outback Hat for Men Women brown**Tiff-K**$25.36**56 rev3y ago](https://www.amazon.com/dp/B0C64VDT61) [**SATINIOR 1920s Old Men Costume Roaring Retro Accessories Set Gangster Hat Bow Tie Pocket Watch Suspender Glass Beard Tie Clip(Brown Simple Style)**SATINIOR**$22.76**1,838 rev5y ago](https://www.amazon.com/dp/B098K5NJWB)
### **Trending**
90-day click momentum
[**Tiff-K Wide Brim Felt Fedora Hat Halloween Cosplay Props Costume Accessory Panama Outback Hat for Men Women brown**Tiff-K**$25.36**4.5★**▲ 39%**](https://www.amazon.com/dp/B0C64VDT61) [**SATINIOR 1920s Old Men Costume Roaring Retro Accessories Set Gangster Hat Bow Tie Pocket Watch Suspender Glass Beard Tie Clip(Brown Simple Style)**SATINIOR**$22.76**4.0★**▲ 23%**](https://www.amazon.com/dp/B098K5NJWB) [**Retro Herringbone Tweed Suits for Men 3 Pieces Prom Suit Set Classic Tuxedo Slim Fit Mens Suits Formal Autumn Winter Jacket Pants Set Dark Brown S**Fxzpiodi**$99.20**4.1★**▼ 59%**](https://www.amazon.com/dp/B0CZNXC4GZ)
## **What buyers say about oppenheimer costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**17%
*“fits perfectly”*
**Thickness**17%
*“not too thick or thin”*
**Material Quality**17%
*“Its a nice material”*
**Quality-Overall**17%
*“Nice quality, fits perfectly”*
**Color**17%
*“The color was just as expected”*
### **What buyers complain about **
**Pockets/Compartments**17%
*“The pockets arent great though”*
### **Top return reasons **
**Size-Overall**70%
**Length**7%
**Material Quality**6%
**Quality-Overall**5%
**Arm Fit**3%
**Sleeve Fit**2%
**Thickness**2%
**Color**2%
**Thigh Fit**2%
**Warmth**2%
## **Common questions**
- **Is oppenheimer costume profitable to sell on Amazon United States?**
- The niche generates $0/yr across 3 tracked products. 90-day search growth is +7.9%. Flapen's verdict: Skip it (26/100).
- **How competitive is the oppenheimer costume niche?**
- 3 brands and 4 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in oppenheimer costume?**
- Top complaints mined from reviews: Pockets/Compartments. The return rate is 19.6% — above our launch gate.
- **When does demand for oppenheimer costume peak?**
- Demand peaks in Oct–Nov; the busiest month runs 72.8× the quietest.
- **What does it cost to enter the oppenheimer costume niche?**
- Listings span $22.76–$99.20; the average listing price is $49.11 (sweet spot $15–$100). The average incumbent carries 798 reviews — the moat a new listing must climb.
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