baseball costume
Skip itSoft demand (-38.1% this quarter) — this niche doesn't clear our bar today.
Avg price
Incredible$24.10avg listing price — sweet spot $15–$100
Brand share
Great52%top-5 brand share — no brand owns this niche
Price range
Great$6.82–$63.56cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Great36%top-5 click share — an open shelf
Review moat
Good814.88avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Returns
Bad5.9%return rate — above 5% kills the launch gate
Conversion
Bad1.6%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
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
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.Peak months: Sep, Oct, Nov · busiest ÷ quietest = 53.4×
Top baseball costume search terms
- baseball costume40K/yr
- baseball costume women11K/yr
- baseball player costume16K/yr
- baseball costume for kids14K/yr
- kids baseball costume4K/yr
- baseball halloween costume10K/yr
- baseball costume adult4K/yr
- baseball player costume kids10K/yr
- baseball player halloween costume4K/yr
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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Coume Vintage Baseball Costume for Carnival Party Halloween Men Baseball Uniform Mens Classic Knickers with Pinstripes(Medium)
Coume$34.024.0★135 rev
MIVEI Toddler Youth Boys Baseball Tee Ball Tball Softball Football Pants
MIVEI$15.474.8★754 rev
Hollowfly Adult Inflatable Costume 4.9-6.2 ft Halloween Costumes for Men Women Funny Blow up for Sports Party(Baseball)
Hollowfly$46.264.5★85 rev
Coume Vintage Baseball Costume for Carnival Party Halloween Men Baseball Uniform Mens Classic Knickers with Pinstripes(X-Large)
Coume$35.474.0★135 rev
Rasta Imposta Get Real Baseball White One Size
Rasta Imposta$36.195.0★1 rev
Newest
by launch date
Champro Triple Crown 2.0 Baseball Knickers Adult Medium Natural
CHAMPRO$20.00411 rev
Boys Pinstripe Baseball Pants Youth Girls Softball Pants Toddler Kids Tee Ball Pant (White Navy 8-9 Years)
YA BELT$18.6973 rev
Sarfel Red Tube Socks Women Red Striped Socks Knee High Stockings for Women Sexy Cheerleader Costume for Womens White Long Sock
Sarfel$8.5188 rev
Baseball Button Up Shirt for Women Quick-Dry Graphic Baseball Game Day Fan Jersey Short Sleeve Tops(Stripe-Yellow S)
LIXHULT$35.7380 rev
Toddler Baseball Pants - Kids Tee Ball Pants for Boy Girl Includes: Red Belt and Baseball Socks (4T)
CHCLACE$16.2759 rev
Trending
90-day click momentum
Baseball Shirt Women Baseball Love Graphic Tees Funny Baseball Mom T Shirt Game Day Short Sleeve Tops White
EGELEXY$15.154.3★
Baseball Button Up Shirt for Women Quick-Dry Graphic Baseball Game Day Fan Jersey Short Sleeve Tops(Stripe-Yellow S)
LIXHULT$35.734.5★
Boys Pinstripe Baseball Pants Youth Girls Softball Pants Toddler Kids Tee Ball Pant (White Navy 8-9 Years)
YA BELT$18.694.5★
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$15.084.3★
HAFKOIS Mens Visor with Hair Fake Hairs Visor Hat with Hair for Men Funny Spiked Sun Hats Novelty Baseball Wig Caps Birthday Gift
HAFKOIS$14.884.4★
What buyers say about baseball costume
What buyers praise and complain about, mined from review topics.What buyers love
“Fits great”
“Great well-made jersey”
“Good quality and elastic waistband”
“the material is so incredibly comfortable”
“Super comfortable”
“Great value”
“Just as described my daughter loves it”
“Great gift”
“easy than some others”
“Color match was perfect”
What buyers complain about
“Shirt runs small”
“Very cheap & poorly made”
“Navy is not the true color”
“Leather feels a bit cheap”
“This shirt smelled horrible”
“the loop near the buckle is all frayed”
“Buckle is flimsy”
“pants are thinner than most”
Top return reasons
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.