---
title: "Gengar Onesie — $2K/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/gengar-onesie"
last_updated: "2026-08-12T18:43:45.298Z"
locale: en
meta:
description: "Amazon product research for gengar onesie: $2K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for gengar onesie: $2K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Gengar Onesie — $2K/mo Amazon US Product Research (2026)"
---
# **Gengar Onesie**
**Skip it**
Weak search conversion (0.4%) — this niche doesn't clear our bar today.
Market size 6Growth 35Conversion 5Competition 61Returns 25Price range 89Avg price 95Brand share 65Review moat 70Quality gap 24
**Avg price**
**Incredible****$34.26**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.42–$101.93**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****683.52**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Good****66%**
top-5 brand share — brands hold most of the demand
**Competition**
**Good****48%**
top-5 click share — leaders hold, buyers still browse
**Growth**
**Okay****+7.6%**
90-day search growth — must beat 0% to launch
**Returns**
**Bad****5.0%**
return rate — above 5% kills the launch gate
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$26K**
$26K/yr · 196K searches
**Conversion**
**Bad****0.4%**
search→purchase rate — share of searches ending in a sale
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
## **Is gengar onesie profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, gengar onesie is a $26K/yr Amazon United States market (196K searches/yr). The top 5 brands hold 66% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 40/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **gengar onesie market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **2K–2K**
- avg 0–100/product
- **Revenue / yr**
- **$51K–$69K**
- units × avg price
- **Conversion rate**
- **0.4%**
- **Avg BSR**
- **#18,936**
- **Page quality**
- **0%**
- **Prime**
- **97%**
- **Sponsored**
- **77%**
- **Out of stock**
- **10.5%**
- **Avg brand age**
- **36 months**
- **Avg seller age**
- **167 days**
## **Competition: brands, sellers & click share**
The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**20 **▲rising
**Sellers**
**42**
**Top-5 brand share**
**66%**
Top 20: 100%
**Top-5 click share**
**48%**
Top 20: 85%
**Open market**
**30%**
- Bioworld31% - Opposuits13% - SAZAC8% - Pokémon8% - MEOWCOS.COM6% - Generic4%
## **gengar onesie demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +7.6% search growth over the last 90 days.
15K10KSpike '24Spike '25Prime Day '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct, Nov · busiest ÷ quietest = 8.2×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/gengar-onesie/trend)
## **Top gengar onesie search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **gengar hat**37K/yr+27.8%0.7% conv. - **gengar onesie**47K/yr-4.1%0.3% conv. - **gengar costume**60K/yr+43.4%0.1% conv. - **gengar beanie**23K/yr-27.9%0.2% conv. - **gengar onesie adult**10K/yr+16.4%0.3% conv. - **gengar pajamas**9K/yr-2.8%0.4% conv. - **gengar costume women**4K/yr-16.7%0.3% conv. - **gengar costume adult**6K/yr+56.2%0.0% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/gengar-onesie/search-terms)
## **Top gengar onesie 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%5%$1K10%$3K15%$4K20%$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**Bioworld Pokemon Gengar Embroidered Snapback Cap Hat Licensed Purple**Bioworld**$30.05**4.9★761 rev](https://www.amazon.com/dp/B08TBQP23D) [2**Opposuits Adult Unisex Gengar Onesie - Pokmon One-piece Pajamas - Loose Fit - Including Pockets - Purple**Opposuits**$50.93**4.4★157 rev](https://www.amazon.com/dp/B0D73ZMWQ6) [3**MEOWCOS Women Bodysuit Onesie Pajamas Romper Bodysuit Plush Hooded and Socks with Belt and Tail**MEOWCOS.COM**$66.45**4.6★104 rev](https://www.amazon.com/dp/B0CT2GXYK5) [4**Pokemon Adult Gengar Embroidered Precurve Snapback Hat For Men and Women**Bioworld**$25.35**4.8★178 rev](https://www.amazon.com/dp/B0CKFNSKNG) [5**SAZAC Gengar Pokemon Kigurumi - Onesie Jumpsuit Halloween Costume (Purple)**SAZAC**$101.93**4.8★479 rev](https://www.amazon.com/dp/B08GR6Z4HK)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Pokmon Gengar Purple Laplander Knit Cap**Bioworld**$24.82**10 rev9mo ago](https://www.amazon.com/dp/B0FV92T2VC) [**Pokemon Tracksuit Set Boys Teens 2 Pc Hoodie Joggers Anime Hoodie Sweatpants Kids Clothes Teen Apparel Gifts for Boys (5-6 Years Purple Gengar)**Pokémon**$41.03**597 rev11mo ago](https://www.amazon.com/dp/B0DNQVM9Z9) [**Anime Beanie Knit Hats Winter Soft Headwear Funny Hat for Men Women Unisex (US Alpha One Size White)**Generic**$14.53**9 rev11mo ago](https://www.amazon.com/dp/B0FLXJG4RH) [**Pokemon One-Piece Pajamas for Boys Teens Fleece Jumpsuit with Hood Pikachu Snorlax Gengar Loungewear PJs Gifts for Boys (11-12 Years Purple Gengar)**Pokémon**$38.08**4,548 rev1y ago](https://www.amazon.com/dp/B0D1817VNQ) [**KZLFSHI Adult Onesie Pajamas Cosplay Halloween Costume Animals Sleepwear Jumpsuit Costume for Women Men (US Alpha X-Large Regular Regular black)**KZLFSHI**$33.72**64 rev1y ago](https://www.amazon.com/dp/B0FFY6C4YK)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**RONGTAI Unisex Adult Costume One Piece Pajamas Overall Halloween Costume Christmas Sleepwear JumpsuitGingerbread ManM**RONGTAI**$29.75**4.5★**▲ 215%**](https://www.amazon.com/dp/B0B6HVXJ23) [**RONGTAI Unisex Adult Costume One Piece Pajamas Overall Halloween Costume Christmas Sleepwear Jumpsuit (Gingerbread Man XXL)**RONGTAI**$27.57**4.5★**▲ 212%**](https://www.amazon.com/dp/B0DBZV2KL4) [**KZLFSHI Adult Onesie Pajamas Cosplay Halloween Costume Animals Sleepwear Jumpsuit Costume for Women Men (US Alpha X-Large Regular Regular black)**KZLFSHI**$33.72**4.4★**▲ 188%**](https://www.amazon.com/dp/B0FFY6C4YK) [**HeiDmai Distressed Ring Beanie Hat Unisex Fashion Hip-hop Slouchy Knitted Skull Caps (Black)**HeiDmai**$14.77**4.4★**▲ 188%**](https://www.amazon.com/dp/B0CM1CCCH8) [**Anime Beanie Knit Hats Winter Soft Headwear Funny Hat for Men Women Unisex (US Alpha One Size White)**Generic**$14.53**4.6★**▲ 150%**](https://www.amazon.com/dp/B0FLXJG4RH)
**~~View all trending →~~**
## **What reviews say buyers love and hate about gengar onesie**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**21%
*“Good fit, size and shape stay intact, and I get a lot of compliments”*
**Quality-Overall**17%
*“Great quality and the perfect accessory to complete my festival fit”*
**Comfort-Overall**7%
*“It is so comfortable”*
**Advertised Vs Actual Product**7%
*“Just as described”*
**Color**6%
*“the color is fantastic”*
**Warmth**5%
*“i love this cat beanie, its super cute and warm”*
**Value For Money**5%
*“Great value for your money”*
**Gifting Purpose**5%
*“Cute present”*
**Shape/Style**3%
*“love the style”*
**Thickness**3%
*“Good quality, thicker than expected”*
### **What buyers complain about **
**Size-Overall**38%
*“Too small”*
**Material Quality**12%
*“Didn't like material was off to hat was crooked”*
**Durability**12%
*“after 2 days of use it ripped”*
**Value For Money**5%
*“Overpriced”*
**Stitch/Finish/Polish**2%
*“Some stitches were irregular”*
**Advertised Vs Actual Product**2%
*“I wish they depicted these features”*
**Length**2%
*“they are 8 inches too long”*
**Hard Feel**2%
*“so that part is a little rough for someone with long hair”*
**Machine Wash Suitability**2%
*“Only thing I wasn't prepared for is that it frays if you machine cycle wash it”*
### **Top return reasons **
**Size-Overall**68%
**Advertised Vs Actual Product**6%
**Shape/Style**5%
**Length**4%
**Material Quality**3%
**Quality-Overall**1%
**Value For Money**1%
**Stitch/Finish/Polish**1%
**Color**1%
**Thin**1%
## **Common gengar onesie questions**
- **Is gengar onesie profitable to sell on Amazon United States?**
- The niche generates $26K/yr across 31 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +7.6%. Flapen's verdict: Skip it (40/100).
- **How competitive is the gengar onesie niche?**
- 20 brands and 42 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 66% of demand.
- **What do buyers complain about in gengar onesie?**
- Top complaints mined from reviews: Size-Overall, Material Quality, Durability. The return rate is 5.0% — above our launch gate.
- **When does demand for gengar onesie peak?**
- Demand peaks in Sep–Oct–Nov; the busiest month runs 8.2× the quietest.
- **What does it cost to enter the gengar onesie niche?**
- Listings span $9.42–$101.93; the average listing price is $34.26 (sweet spot $15–$100). The average incumbent carries 684 reviews — the moat a new listing must climb.
## **Related niches to research next**
Same-category niches scoring near this one — the next ones worth researching.
- 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)