---
title: "Hippo Costume — $3K/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/hippo-costume"
last_updated: "2026-08-12T21:02:31.196Z"
locale: en
meta:
description: "Amazon product research for hippo costume: $3K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for hippo costume: $3K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Hippo Costume — $3K/mo Amazon US Product Research (2026)"
---
# **Hippo Costume**
**Skip it**
High returns (10.7%) — this niche doesn't clear our bar today.
Market size 9Growth 52Conversion 21Competition 78Returns 5Price range 88Avg price 95Brand share 61Review moat 80Quality gap 38
**Avg price**
**Incredible****$24.87**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$9.76–$68.84**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Great****399.73**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Great****37%**
top-5 click share — an open shelf
**Brand share**
**Good****68%**
top-5 brand share — brands hold most of the demand
**Growth**
**Good****+22.7%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Bad****1.7%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$34K**
$34K/yr · 81K searches
**Returns**
**Bad****10.7%**
return rate — above 5% kills the launch gate
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%") [** Out of Stock**](https://flapen.com/research/niches?market=us&signal=out_of_stock "OOS rate > 10%")
## **Is hippo costume profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, hippo costume is a $34K/yr Amazon United States market (81K searches/yr). The top 5 brands hold 68% of demand. Demand peaks in Oct–Nov. Verdict: Skip it — 46/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **hippo costume 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**
- **$37K–$50K**
- units × avg price
- **Conversion rate**
- **1.7%**
- **Avg BSR**
- **#13,324**
- **Page quality**
- **0%**
- **Prime**
- **95%**
- **Sponsored**
- **85%**
- **Out of stock**
- **31.7%**
- **Avg brand age**
- **35 months**
- **Avg seller age**
- **197 days**
## **Competition: brands, sellers & click share**
Clicks spread well past the top 5 (37% combined) — an open shelf where new products get seen.
**Brands**
**18 **▼falling
**Sellers**
**29**
**Top-5 brand share**
**68%**
Top 20: 100%
**Top-5 click share**
**37%**
Top 20: 77%
**Open market**
**27%**
- JUOLOET33% - Rubies14% - QNRMS10% - Jeyfull6% - WAFUNNE6% - TYONMUJO5%
## **hippo costume demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +22.7% search growth over the last 90 days.
25K15KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Oct, Nov · busiest ÷ quietest = 34.7×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/hippo-costume/trend)
## **Top hippo costume search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **hippo costume**33K/yr+20.5%1.0% conv. - **hippo inflatable costume**9K/yr+69.5%2.3% conv. - **inflatable hippo costume**9K/yr+15.0%2.9% conv. - **inflatable hippo**5K/yr+59.4%1.3% conv. - **hippo costume kids**8K/yr-24.9%1.1% conv. - **inflatable hippo costume adult**4K/yr+78.3%4.0% conv. - **hippo costume adult**10K/yr-0.2%1.7% conv. - **hippopotamus costume**4K/yr-34.6%0.6% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/hippo-costume/search-terms)
## **Top hippo 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%4%$1K8%$3K12%$4K16%$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**Rubies Hippo Inflatable Costume for Adults Unisex One Size**Rubies**$53.28**4.3★1,412 rev](https://www.amazon.com/dp/B06XCHVN1V) [2**QNRMS Hippo Inflatable Costume Adult Blow up Inflatable Animal Costume Suit Funny Halloween Costume for Men & Women (Purple)**QNRMS**$29.87**4.0★88 rev](https://www.amazon.com/dp/B0F48926DX) [3**JUOLOET Unisex Adult Onesie Pajamas Hippo Animal One Piece Snug Fit Halloween Costume Sleepwear Homewear Hippo X-Large**JUOLOET**$19.36**4.6★473 rev](https://www.amazon.com/dp/B0DZCS2GQG) [4**JUOLOET Unisex Adult Onesie Pajamas Hippo Animal One Piece Snug Fit Halloween Costume Sleepwear Homewear Grey Hippo Large**JUOLOET**$28.99**4.6★473 rev](https://www.amazon.com/dp/B0DZCQ62MN) [5**WAFUNNE Animal Onesie Costume for Kids Child Boys Girls Womens Mens Cosplay Halloween Costumes Easter Onesies Grey Hippo 140**WAFUNNE**$23.43**4.6★18 rev](https://www.amazon.com/dp/B0D5QKTM4Y)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**JUOLOET Unisex Adult Onesie Pajamas Hippo Animal One Piece Snug Fit Halloween Costume Sleepwear HomewearNew Grey Hippo Large**JUOLOET**$23.66**473 rev4mo ago](https://www.amazon.com/dp/B0GQ3LNFKT) [**JUOLOET Unisex Adult Onesie Pajamas Hippo Animal One Piece Snug Fit Halloween Costume Sleepwear HomewearNew Grey Hippo X-Small**JUOLOET**$22.37**473 rev4mo ago](https://www.amazon.com/dp/B0GQ3G9RKW) [**JUOLOET Unisex Adult Onesie Pajamas Hippo Animal One Piece Snug Fit Halloween Costume Sleepwear HomewearNew Hippo Medium**JUOLOET**$28.47**473 rev4mo ago](https://www.amazon.com/dp/B0GQ3K4RMJ) [**JUOLOET Unisex Adult Onesie Pajamas Hippo Animal One Piece Snug Fit Halloween Costume Sleepwear HomewearNew Hippo X-Small**JUOLOET**$24.58**473 rev4mo ago](https://www.amazon.com/dp/B0GQ3FFLWG) [**JUOLOET Unisex Adult Onesie Pajamas Hippo Animal One Piece Snug Fit Halloween Costume Sleepwear HomewearNew Grey Hippo Medium**JUOLOET**$27.35**473 rev4mo ago](https://www.amazon.com/dp/B0GQ3MGNH6)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**JUOLOET Unisex Adult Onesie Pajamas Hippo Animal One Piece Snug Fit Halloween Costume Sleepwear HomewearNew Hippo X-Small**JUOLOET**$24.58**4.6★**▲ 274%**](https://www.amazon.com/dp/B0GQ3FFLWG) [**JUOLOET Unisex Adult Onesie Pajamas Hippo Animal One Piece Snug Fit Halloween Costume Sleepwear HomewearNew Hippo Medium**JUOLOET**$28.47**4.6★**▲ 273%**](https://www.amazon.com/dp/B0GQ3K4RMJ) [**JUOLOET Unisex Adult Onesie Pajamas Hippo Animal One Piece Snug Fit Halloween Costume Sleepwear HomewearNew Grey Hippo Large**JUOLOET**$23.66**4.6★**▲ 273%**](https://www.amazon.com/dp/B0GQ3LNFKT) [**JUOLOET Unisex Adult Onesie Pajamas Hippo Animal One Piece Snug Fit Halloween Costume Sleepwear HomewearNew Grey Hippo Medium**JUOLOET**$27.35**4.6★**▲ 273%**](https://www.amazon.com/dp/B0GQ3MGNH6) [**JUOLOET Unisex Adult Onesie Pajamas Hippo Animal One Piece Snug Fit Halloween Costume Sleepwear HomewearNew Grey Hippo X-Small**JUOLOET**$22.37**4.6★**▲ 272%**](https://www.amazon.com/dp/B0GQ3G9RKW)
**~~View all trending →~~**
## **What reviews say buyers love and hate about hippo costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**26%
*“Good quality”*
**Value For Money**17%
*“Great mask for the price”*
**Fun/Entertainment Experience**12%
*“Such a fun costume”*
**Comfort-Overall**11%
*“Item was comfortable”*
**Material Quality**7%
*“Material is good”*
**Soft Feel**7%
*“Soft and fits good”*
**Size-Overall**6%
*“it fit him well”*
**Durability**6%
*“held up well for kickball”*
**Inflation/Deflation**4%
*“Its very spacious when fully inflated”*
**Strength**2%
*“Seems pretty sturdy”*
### **What buyers complain about **
**Transparency**9%
*“hard to see out of foggy peep hole”*
**Breathability**9%
*“you can't see out of it or breathe well in it”*
**Ease Of Use**9%
*“it was a little tricky to see out of”*
**Strap/String Quality**9%
*“I also found myself having to hold it up by the tutu because the inside straps did not offer any help in fit or support”*
**Hard Feel**9%
*“Hard to see out of”*
**Inflation/Deflation**9%
*“Doesn't fully inflate”*
**Wrinkles**9%
*“This 1st order was missing parts and very wrinkled”*
**Allergies**9%
*“My daughter said it was itchy”*
**Instructions/User Manual/Troubleshooting**9%
*“reading instructions ahead of time”*
**Material Quality**5%
*“The only problem is material is not good”*
### **Top return reasons **
**Size-Overall**51%
**Length**7%
**Transparency**5%
**Functionality-Overall**4%
**Gap/Hole**4%
**Thigh Fit**2%
**Advertised Vs Actual Product**2%
**Zipper Quality**2%
**Product Condition**2%
**Material Quality**2%
## **Common hippo costume questions**
- **Is hippo costume profitable to sell on Amazon United States?**
- The niche generates $34K/yr across 41 tracked products. 0 of 16 products launched in the last 360 days are still selling. 90-day search growth is +22.7%. Flapen's verdict: Skip it (46/100).
- **How competitive is the hippo costume niche?**
- 18 brands and 29 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 68% of demand.
- **What do buyers complain about in hippo costume?**
- Top complaints mined from reviews: Transparency, Breathability, Ease Of Use. The return rate is 10.7% — above our launch gate.
- **When does demand for hippo costume peak?**
- Demand peaks in Oct–Nov; the busiest month runs 34.7× the quietest.
- **What does it cost to enter the hippo costume niche?**
- Listings span $9.76–$68.84; the average listing price is $24.87 (sweet spot $15–$100). The average incumbent carries 400 reviews — the moat a new listing must climb.
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