---
title: "The Deep Costume — $0/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/the-deep-costume"
last_updated: "2026-08-09T22:17:44.934Z"
locale: en
meta:
description: "Niche score 44/100 · $0/yr market · 44K searches/yr · $49.16 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 44/100 · $0/yr market · 44K searches/yr · $49.16 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "The Deep Costume — $0/yr Amazon US Niche (2026) - Flapen"
---
# **the deep costume**
**Skip it**
A small market ($0/yr) — this niche doesn't clear our bar today.
Market size 0Growth 100Conversion 0Competition 20Returns 0Price range 95Avg price 93Brand share 19Review moat 95Quality gap 95
**Growth**
**Incredible****>1,000%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Incredible****4.0★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Great****102.19**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Incredible****$15.60–$82.18**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$49.16**
avg listing price — sweet spot $15–$100
**Competition**
**Bad****76%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****92%**
top-5 brand share — brand-locked demand
**Market size**
**Bad****$0**
$0/yr · 44K searches
**Conversion**
**Bad****0.0%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Bad****13.9%**
return rate — above 5% kills the launch gate
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, the deep costume is a $0/yr Amazon United States market (44K searches/yr). The top 5 brands hold 92% of demand. Demand peaks in May–Oct–Nov. Verdict: Skip it — 44/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **the deep 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**
- **#5,106**
- **Page quality**
- **0%**
- **Prime**
- **31%**
- **Sponsored**
- **50%**
- **Out of stock**
- **16.1%**
- **Avg brand age**
- **44 months**
- **Avg seller age**
- **196 days**
## **Competition & brand share**
The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**9 **▲rising
**Sellers**
**10**
**Top-5 brand share**
**92%**
Top 20: 100%
**Top-5 click share**
**76%**
Top 20: 100%
**Open market**
**5%**
- Fun Costumes44% - QAHEART27% - Puruuige13% - Tonainy5% - Firecos4% - Yearntown3% - Open — no brand owns it (3 brands, 5%)
## **Demand & seasonality**
Weekly Amazon search volume, last 88 weeks — >1,000% search growth over the last 90 days.
7K5KSpike '25Spike '26 seasonNovDecFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: May, Oct, Nov · busiest ÷ quietest = 97.8×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/the-deep-costume/trend)
## **Top the deep 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%$020%$030%$040%$01101001K10K 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**QAHEART Homelander/The Deep/Starligh/The Trainert Cosplay Jumpsuit Halloween Outfit Bodysuit Anime Cosplay Costume**QAHEART**$33.24**4.1★12 rev](https://www.amazon.com/dp/B0BF4W7R95) [2**Fun Costumes Mens The Boys The Deep Costume Jumpsuit with Belt Gloves Boot Covers and Octopus Accessory for Halloween Cosplay X-Large**Fun Costumes**$80.06**3.6★4 rev](https://www.amazon.com/dp/B0FJMT18TW) [3**Fun Costumes Mens The Boys The Deep Costume Jumpsuit with Belt Gloves Boot Covers and Octopus Accessory for Halloween Cosplay Small**Fun Costumes**$78.30**3.6★4 rev](https://www.amazon.com/dp/B0FJMV5Q7H) [4**Puruuige The Deep Costume Set The Deep Cosplay Outfits Set Cartoon Jumpsuit Bodysuits Set for Kids Adult**Puruuige**$37.24**5.0★1 rev](https://www.amazon.com/dp/B0BDXKTXLS) [5**Puruuige The Deep Costume Set The Deep Cosplay Outfits Set Cartoon Jumpsuit Bodysuits Set for Kids Adult**Puruuige**$37.35**4.0★4 rev](https://www.amazon.com/dp/B0BDXL3CT1)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Yearntown 3 Pcs Halloween Men Costume Set Blue Tropical Shirt and Shorts with Gold Roller Buckle Belt for Movie Party(XL)**Yearntown**$34.27**2 rev11mo ago](https://www.amazon.com/dp/B0FM7W4T11) [**Fun Costumes Mens The Boys The Deep Costume Jumpsuit with Belt Gloves Boot Covers and Octopus Accessory for Halloween Cosplay X-Large**Fun Costumes**$80.06**4 rev11mo ago](https://www.amazon.com/dp/B0FJMT18TW) [**Fun Costumes Mens The Boys The Deep Costume Jumpsuit with Belt Gloves Boot Covers and Octopus Accessory for Halloween Cosplay Small**Fun Costumes**$78.30**4 rev11mo ago](https://www.amazon.com/dp/B0FJMV5Q7H) [**Fun Costumes Mens The Boys The Deep Costume Jumpsuit with Belt Gloves Boot Covers and Octopus Accessory for Halloween Cosplay Large**Fun Costumes**$82.18**4 rev11mo ago](https://www.amazon.com/dp/B0FJMTNNY8) [**Geyoga Hooded Cloak Reaper Costume Medieval Renaissance Wizard Cloak Reaper Cosplay Cape Costume for Adult(Deep Black L)**Geyoga**$15.60**3 rev12mo ago](https://www.amazon.com/dp/B0FHGM92VX)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**QAHEART Homelander/The Deep/Starligh/The Trainert Cosplay Jumpsuit Halloween Outfit Bodysuit Anime Cosplay Costume**QAHEART**$31.88**4.1★**▲ 47%**](https://www.amazon.com/dp/B0BF4VQXRK) [**Mark Grayson Costume Jumpsuit Invincible Cosplay Halloween Outfits**Firecos**$47.84**4.0★**▲ 47%**](https://www.amazon.com/dp/B0F7KC8LY7) [**Firecos Conquest Cosplay Costume Jumpsuit Mens Invincible Cosplay Costumes Adults Bodysuit Halloween Outfits**Firecos**$54.02**0.0★**▲ 46%**](https://www.amazon.com/dp/B0F8BB95J4) [**Fun Costumes Kids Deluxe Purple Octopus Costume Tentacled Headwear Outfit Standard**Fun Costumes**$66.31**5.0★**▲ 46%**](https://www.amazon.com/dp/B0D2JGHVG8) [**Renaiasnace Faire Costume Women 2024 Summer Cottagecore Long Dress Red M**Scarlet Darkness**$37.31**4.4★**▲ 46%**](https://www.amazon.com/dp/B0BW6WK338)
**~~View all trending →~~**
## **What buyers say about the deep costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**100%
*“nice quality”*
### **What buyers complain about **
**Size-Overall**100%
*“The top is kind of tight”*
### **Top return reasons **
**Size-Overall**48%
**Shoulder Fit**9%
**Waist Fit**7%
**Material Quality**7%
**Length**4%
**Chest Fit**4%
**Advertised Vs Actual Product**3%
**Comfort-Overall**3%
**Hip Fit**3%
**Stretchability/Expandability/Elasticity**2%
## **Common questions**
- **Is the deep costume profitable to sell on Amazon United States?**
- The niche generates $0/yr across 16 tracked products. 0 of 5 products launched in the last 360 days are still selling. 90-day search growth is >1,000%. Flapen's verdict: Skip it (44/100).
- **How competitive is the the deep costume niche?**
- 9 brands and 10 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 92% of demand.
- **What do buyers complain about in the deep costume?**
- Top complaints mined from reviews: Size-Overall. The return rate is 13.9% — above our launch gate.
- **When does demand for the deep costume peak?**
- Demand peaks in May–Oct–Nov; the busiest month runs 97.8× the quietest.
- **What does it cost to enter the the deep costume niche?**
- Listings span $15.60–$82.18; the average listing price is $49.16 (sweet spot $15–$100). The average incumbent carries 102 reviews — the moat a new listing must climb.
## **Related niches in Clothing, Shoes & Jewelry**
- 72 [**first communion gifts for boys**](https://flapen.com/research/us/clothing-shoes-jewelry/first-communion-gifts-for-boys)$398K/yr+223.5%**Worth a look**- 72 [**fifa world cup 2026 tshirt**](https://flapen.com/research/us/clothing-shoes-jewelry/fifa-world-cup-2026-tshirt)$177K/yr>1,000%**Worth a look**- 72 [**american flag hat**](https://flapen.com/research/us/clothing-shoes-jewelry/american-flag-hat)$764K/yr+428.8%**Worth a look**- 72 [**white socks men**](https://flapen.com/research/us/clothing-shoes-jewelry/white-socks-men)$3.0M/yr+13.3%**Launch it**- 72 [**american flag overalls**](https://flapen.com/research/us/clothing-shoes-jewelry/american-flag-overalls)$662K/yr>1,000%**Worth a look**- 73 [**white ankle socks for men**](https://flapen.com/research/us/clothing-shoes-jewelry/white-ankle-socks-for-men)$448K/yr+88.3%**Worth a look**[**All Clothing, Shoes & Jewelry niches **](https://flapen.com/research/us/clothing-shoes-jewelry)