---
title: "Mariners Jersey — $2K/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/sports-outdoors/mariners-jersey"
last_updated: "2026-08-12T15:41:46.692Z"
locale: en
meta:
description: "Amazon product research for mariners jersey: $2K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for mariners jersey: $2K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Mariners Jersey — $2K/mo Amazon US Product Research (2026)"
---
# **Mariners Jersey**
**Skip it**
Weak search conversion (0.2%) — this niche doesn't clear our bar today.
Market size 5Growth 74Conversion 3Competition 61Returns 21Price range 95Avg price 93Brand share 27Review moat 89Quality gap 40
**Price range**
**Incredible****$15.55–$99.24**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$50.97**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****210.84**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Good****+57.6%**
90-day search growth — must beat 0% to launch
**Competition**
**Good****48%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****89%**
top-5 brand share — brands hold most of the demand
**Returns**
**Bad****6.1%**
return rate — above 5% kills the launch gate
**Market size**
**Bad****$20K**
$20K/yr · 194K searches
**Conversion**
**Bad****0.2%**
search→purchase rate — share of searches ending in a sale
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
## **Is mariners jersey profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, mariners jersey is a $20K/yr Amazon United States market (194K searches/yr). The top 5 brands hold 89% of demand. Verdict: Skip it — 44/100.
Data updated Jul 18, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **mariners jersey market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **500–750**
- avg 0–100/product
- **Revenue / yr**
- **$25K–$38K**
- units × avg price
- **Conversion rate**
- **0.2%**
- **Avg BSR**
- **#4,004**
- **Page quality**
- **0%**
- **Prime**
- **68%**
- **Sponsored**
- **52%**
- **Out of stock**
- **14.1%**
- **Avg brand age**
- **33 months**
- **Avg seller age**
- **149 days**
## **Competition: brands, sellers & click share**
The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**13 **▼falling
**Sellers**
**18**
**Top-5 brand share**
**89%**
Top 20: 100%
**Top-5 click share**
**48%**
Top 20: 87%
**Open market**
**9%**
- CUEJDSA47% - Outerstuff28% - NZUONODAI8% - D DEHANER3% - Tocament2% - Xtreme Apparrel2% - Open — no brand owns it (7 brands, 9%)
## **mariners jersey demand & seasonality**
Weekly Amazon search volume, last 38 weeks — +57.6% search growth over the last 90 days.
5K3KHoliday '25Spike '26Nov '25Dec '25Jan '26Mar '26Apr '26May '26
[**Open Trend **](https://flapen.com/research/us/sports-outdoors/mariners-jersey/trend)
## **Top mariners jersey search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **mariners jersey**95K/yr+62.7%0.1% conv. - **seattle mariners jersey**49K/yr+53.3%0.1% conv. - **mariners jersey women**14K/yr+96.3%0.1% conv. - **mariners jersey men**13K/yr+37.9%0.1% conv. - **kids mariners jersey**6K/yr+24.1%0.1% conv. - **seattle mariners jersey men**7K/yr+45.1%0.1% conv. - **mariners jersey kids**6K/yr+53.1%0.1% conv. - **seattle mariners jersey women**5K/yr+39.8%0.0% conv. [**All search terms **](https://flapen.com/research/us/sports-outdoors/mariners-jersey/search-terms)
## **Top mariners jersey 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%$99010%$2K15%$3K20%$4K1101001K10K 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**CUEJDSA Stitched #29 Baseball City Jersey for Men Fans Baseball Shirts Costume (Blue Green Size XL)**CUEJDSA**$35.28**5.0★9 rev](https://www.amazon.com/dp/B0GCLMN2CB) [2**CUEJDSA Stitched #29 Baseball City Jersey for Men Fans Baseball Shirts Costume (Blue Green Size 3XL)**CUEJDSA**$35.30**5.0★9 rev](https://www.amazon.com/dp/B0GCMCTNKW) [3**Outerstuff Youth Julio Rodriguez Seattle Mariners Replica Home Jersey (as1 Alpha l Regular Youth Large (14-16)) White**Outerstuff**$79.52**4.5★30 rev](https://www.amazon.com/dp/B0BM8S3FQX) [4**CUEJDSA Mens #29 City Baseball Jersey Stitched Baseball Sports Shirts for Fans (Blue Green Size 2XL)**CUEJDSA**$35.59**5.0★9 rev](https://www.amazon.com/dp/B0GCLMKQLV) [5**CUEJDSA Stitched #29 Baseball City Jersey for Men Fans Baseball Shirts Costume (Blue Green Size M)**CUEJDSA**$35.13**5.0★9 rev](https://www.amazon.com/dp/B0GCMRB6Q4)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Baseball Shirt Women Oversized Game Day Fan T-Shirt Baseball Season Short Sleeve Tops Grey**JINTING**$18.54**276 rev5mo ago](https://www.amazon.com/dp/B0GGXJH226) [**CUEJDSA Stitched #29 Baseball City Jersey for Men Fans Baseball Shirts Costume (Blue Green Size XL)**CUEJDSA**$35.28**9 rev6mo ago](https://www.amazon.com/dp/B0GCLMN2CB) [**CUEJDSA Stitched #29 Baseball City Jersey for Men Fans Baseball Shirts Costume (Blue Green Size 3XL)**CUEJDSA**$35.30**9 rev6mo ago](https://www.amazon.com/dp/B0GCMCTNKW) [**CUEJDSA Mens #29 City Baseball Jersey Stitched Baseball Sports Shirts for Fans (Blue Green Size 2XL)**CUEJDSA**$35.59**9 rev6mo ago](https://www.amazon.com/dp/B0GCLMKQLV) [**CUEJDSA Stitched #29 Baseball City Jersey for Men Fans Baseball Shirts Costume (Blue Green Size M)**CUEJDSA**$35.13**9 rev6mo ago](https://www.amazon.com/dp/B0GCMRB6Q4)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Baseball Shirt Women Oversized Game Day Fan T-Shirt Baseball Season Short Sleeve Tops Grey**JINTING**$18.54**4.6★**▲ 40%**](https://www.amazon.com/dp/B0GGXJH226) [**Ken Griffey Jr. Jersey Seattle Aqua Mens Baseball Stitched**NZUONODAI**$59.10**4.2★**▲ 39%**](https://www.amazon.com/dp/B0FQMJS31D) [**CUEJDSA Mens #29 City Baseball Jersey Stitched Baseball Sports Shirts for Fans (Blue Green Size L)**CUEJDSA**$35.43**5.0★**▲ 37%**](https://www.amazon.com/dp/B0GCML69FB) [**CUEJDSA Mens #29 City Baseball Jersey Stitched Baseball Sports Shirts for Fans (Blue Green Size S)**CUEJDSA**$34.60**5.0★**▲ 37%**](https://www.amazon.com/dp/B0GCN2NLDB) [**Outerstuff Youth Cal Raleigh Seattle Mariners Cream Alternate Replica Jersey (US Alpha X-Large Regular Cream)**Outerstuff**$90.25**5.0★**▲ 36%**](https://www.amazon.com/dp/B0GLQXGB7S)
**~~View all trending →~~**
## **What reviews say buyers love and hate about mariners jersey**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**53%
*“Fits great”*
**Quality-Overall**15%
*“Great shirt, good quality, lightweight”*
**Comfort-Overall**8%
*“Comfortable”*
**Value For Money**4%
*“Worth it”*
**Color**4%
*“The coloring is nice overall a great purchase”*
**Advertised Vs Actual Product**4%
*“As described”*
**Soft Feel**4%
*“Its softs”*
**Weight Light**3%
*“Light weight,”*
### **What buyers complain about **
**Quality-Overall**50%
*“poor quality”*
**Color**17%
*“Wrong color”*
**Thickness**17%
*“Material is thin”*
### **Top return reasons **
**Size-Overall**61%
**Advertised Vs Actual Product**10%
**Material Quality**5%
**Length**4%
**Chest Fit**3%
**Color**3%
**Shape/Style**2%
**Product Condition**2%
**Value For Money**2%
**Sleeve Fit**2%
## **Common mariners jersey questions**
- **Is mariners jersey profitable to sell on Amazon United States?**
- The niche generates $20K/yr across 31 tracked products. 0 of 12 products launched in the last 360 days are still selling. 90-day search growth is +57.6%. Flapen's verdict: Skip it (44/100).
- **How competitive is the mariners jersey niche?**
- 13 brands and 18 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 89% of demand.
- **What do buyers complain about in mariners jersey?**
- Top complaints mined from reviews: Quality-Overall, Color, Thickness. The return rate is 6.1% — above our launch gate.
- **What does it cost to enter the mariners jersey niche?**
- Listings span $15.55–$99.24; the average listing price is $50.97 (sweet spot $15–$100). The average incumbent carries 211 reviews — the moat a new listing must climb.
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