---
title: "Baseball Costume — $44K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/baseball-costume"
last_updated: "2026-08-06T15:30:08.411Z"
locale: en
meta:
description: "Niche score 45/100 · $44K/yr market · 114K searches/yr · $24.10 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 45/100 · $44K/yr market · 114K searches/yr · $24.10 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Baseball Costume — $44K/yr Amazon US Niche (2026) - Flapen"
---
# **baseball costume**
**Skip it**
Soft demand (-38.1% this quarter) — this niche doesn't clear our bar today.
Market size 11Growth 6Conversion 20Competition 79Returns 22Price range 83Avg price 95Brand share 83Review moat 67Quality gap 53
**Avg price**
**Incredible****$24.10**
avg listing price — sweet spot $15–$100
**Brand share**
**Great****52%**
top-5 brand share — no brand owns this niche
**Price range**
**Great****$6.82–$63.56**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Great****36%**
top-5 click share — an open shelf
**Review moat**
**Good****814.88**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Returns**
**Bad****5.9%**
return rate — above 5% kills the launch gate
**Conversion**
**Bad****1.6%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$44K**
$44K/yr · 114K searches
**Growth**
**Bad****-38.1%**
90-day search growth — must beat 0% to launch
**Signals**[** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, baseball costume is a $44K/yr Amazon United States market (114K searches/yr). The top 5 brands hold 52% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 45/100.
Data updated Jul 21, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **baseball costume market data**
- **Units sold / yr**
- **750–1K**
- avg 0–100/product
- **Revenue / yr**
- **$18K–$24K**
- units × avg price
- **Conversion rate**
- **1.6%**
- **Avg BSR**
- **#1,593**
- **Page quality**
- **0%**
- **Prime**
- **95%**
- **Sponsored**
- **86%**
- **Out of stock**
- **9.8%**
- **Avg brand age**
- **37 months**
- **Avg seller age**
- **180 days**
## **Competition & brand share**
Clicks spread well past the top 5 (36% combined) — an open shelf where new products get seen.
**Brands**
**37 **▲rising
**Sellers**
**61**
**Top-5 brand share**
**52%**
Top 20: 88%
**Top-5 click share**
**36%**
Top 20: 70%
**Open market**
**43%**
- Coume21% - MIVEI12% - Rasta Imposta8% - Hollowfly7% - Phoneutrix5% - CUTHBERT5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -38.1% search growth over the last 90 days.
18K13KSpike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct, Nov · busiest ÷ quietest = 53.4×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/baseball-costume/trend)
## **Top baseball costume search terms**
- **baseball costume**40K/yr-9.0%0.5% conv. - **baseball costume women**11K/yr-2.1%0.5% conv. - **baseball player costume**16K/yr-50.4%0.1% conv. - **baseball costume for kids**14K/yr-80.2%0.6% conv. - **kids baseball costume**4K/yr-47.4%1.2% conv. - **baseball halloween costume**10K/yr+35.6%0.4% conv. - **baseball costume adult**4K/yr-14.6%2.1% conv. - **baseball player costume kids**10K/yr-85.9%0.0% conv. - **baseball player halloween costume**4K/yr-18.6%0.0% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/baseball-costume/search-terms)
## **Top baseball 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%3%$1K6%$3K9%$4K12%$5K1101001K10K100K 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**Coume Vintage Baseball Costume for Carnival Party Halloween Men Baseball Uniform Mens Classic Knickers with Pinstripes(Medium)**Coume**$34.02**4.0★135 rev](https://www.amazon.com/dp/B09YM5HFHW) [2**MIVEI Toddler Youth Boys Baseball Tee Ball Tball Softball Football Pants**MIVEI**$15.47**4.8★754 rev](https://www.amazon.com/dp/B0C6XMNDKM) [3**Hollowfly Adult Inflatable Costume 4.9-6.2 ft Halloween Costumes for Men Women Funny Blow up for Sports Party(Baseball)**Hollowfly**$46.26**4.5★85 rev](https://www.amazon.com/dp/B0DLNY6VHS) [4**Coume Vintage Baseball Costume for Carnival Party Halloween Men Baseball Uniform Mens Classic Knickers with Pinstripes(X-Large)**Coume**$35.47**4.0★135 rev](https://www.amazon.com/dp/B09YM5SCS8) [5**Rasta Imposta Get Real Baseball White One Size**Rasta Imposta**$36.19**5.0★1 rev](https://www.amazon.com/dp/B00C3DLKCY)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Champro Triple Crown 2.0 Baseball Knickers Adult Medium Natural**CHAMPRO**$20.00**411 rev5mo ago](https://www.amazon.com/dp/B0CVNDGBP5) [**Boys Pinstripe Baseball Pants Youth Girls Softball Pants Toddler Kids Tee Ball Pant (White Navy 8-9 Years)**YA BELT**$18.69**73 rev7mo ago](https://www.amazon.com/dp/B0G9RQCPDR) [**Sarfel Red Tube Socks Women Red Striped Socks Knee High Stockings for Women Sexy Cheerleader Costume for Womens White Long Sock**Sarfel**$8.51**88 rev10mo ago](https://www.amazon.com/dp/B0FS2XVQSF) [**Baseball Button Up Shirt for Women Quick-Dry Graphic Baseball Game Day Fan Jersey Short Sleeve Tops(Stripe-Yellow S)**LIXHULT**$35.73**80 rev11mo ago](https://www.amazon.com/dp/B0FK4CD45K) [**Toddler Baseball Pants - Kids Tee Ball Pants for Boy Girl Includes: Red Belt and Baseball Socks (4T)**CHCLACE**$16.27**59 rev1y ago](https://www.amazon.com/dp/B0FBV74FH4)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Baseball Shirt Women Baseball Love Graphic Tees Funny Baseball Mom T Shirt Game Day Short Sleeve Tops White**EGELEXY**$15.15**4.3★**▲ 274%**](https://www.amazon.com/dp/B0B711V1X3) [**Baseball Button Up Shirt for Women Quick-Dry Graphic Baseball Game Day Fan Jersey Short Sleeve Tops(Stripe-Yellow S)**LIXHULT**$35.73**4.5★**▲ 272%**](https://www.amazon.com/dp/B0FK4CD45K) [**Boys Pinstripe Baseball Pants Youth Girls Softball Pants Toddler Kids Tee Ball Pant (White Navy 8-9 Years)**YA BELT**$18.69**4.5★**▲ 250%**](https://www.amazon.com/dp/B0G9RQCPDR) [**Youth Baseball Jersey Blank Boys T Shirt Button Down Hip Hop Fashion Sport Shirts Tops for Girls S-XL (Youth Blue Stripe X-Large)**MESOSPERO**$15.08**4.3★**▲ 233%**](https://www.amazon.com/dp/B0C84GVKZB) [**HAFKOIS Mens Visor with Hair Fake Hairs Visor Hat with Hair for Men Funny Spiked Sun Hats Novelty Baseball Wig Caps Birthday Gift**HAFKOIS**$14.88**4.4★**▲ 205%**](https://www.amazon.com/dp/B0D9TFB5NL)
**~~View all trending →~~**
## **What buyers say about baseball costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**25%
*“Fits great”*
**Quality-Overall**19%
*“Great well-made jersey”*
**Stretchability/Expandability/Elasticity**10%
*“Good quality and elastic waistband”*
**Material Quality**8%
*“the material is so incredibly comfortable”*
**Comfort-Overall**7%
*“Super comfortable”*
**Value For Money**7%
*“Great value”*
**Advertised Vs Actual Product**3%
*“Just as described my daughter loves it”*
**Gifting Purpose**3%
*“Great gift”*
**Ease Of Use**2%
*“easy than some others”*
**Color**2%
*“Color match was perfect”*
### **What buyers complain about **
**Size-Overall**44%
*“Shirt runs small”*
**Quality-Overall**14%
*“Very cheap & poorly made”*
**Color**7%
*“Navy is not the true color”*
**Leather Quality**7%
*“Leather feels a bit cheap”*
**Smell**6%
*“This shirt smelled horrible”*
**Strap/String Quality**5%
*“the loop near the buckle is all frayed”*
**Strength**2%
*“Buckle is flimsy”*
**Thickness**1%
*“pants are thinner than most”*
### **Top return reasons **
**Size-Overall**69%
**Color**6%
**Advertised Vs Actual Product**4%
**Quality-Overall**3%
**Length**3%
**Material Quality**2%
**Value For Money**1%
**Waist Fit**1%
**Thin**1%
**Thigh Fit**1%
## **Common questions**
- **Is baseball costume profitable to sell on Amazon United States?**
- The niche generates $44K/yr across 58 tracked products. 2 of 6 products launched in the last 360 days are still selling. 90-day search growth is -38.1%. Flapen's verdict: Skip it (45/100).
- **How competitive is the baseball costume niche?**
- 37 brands and 61 sellers compete. The top 5 products take 36% of clicks and top 5 brands hold 52% of demand.
- **What do buyers complain about in baseball costume?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Color. The return rate is 5.9% — above our launch gate.
- **When does demand for baseball costume peak?**
- Demand peaks in Sep–Oct–Nov; the busiest month runs 53.4× the quietest.
- **What does it cost to enter the baseball costume niche?**
- Listings span $6.82–$63.56; the average listing price is $24.10 (sweet spot $15–$100). The average incumbent carries 815 reviews — the moat a new listing must climb.
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