---
title: "Mariners Shirt — $7K/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/sports-outdoors/mariners-shirt"
last_updated: "2026-08-12T14:52:19.989Z"
locale: en
meta:
description: "Amazon product research for mariners shirt: $7K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for mariners shirt: $7K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Mariners Shirt — $7K/mo Amazon US Product Research (2026)"
---
# **Mariners Shirt**
**Worth a look**
Shows a sweet-spot price point ($22.22 avg), but weak search conversion (1.0%) keeps it on the watch list.
Market size 20Growth 61Conversion 13Competition 89Returns 21Price range 83Avg price 93Brand share 67Review moat 68Quality gap 33
**Avg price**
**Great****$22.22**
avg listing price — sweet spot $15–$100
**Competition**
**Great****26%**
top-5 click share — an open shelf
**Price range**
**Great****$7.12–$58.89**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****765.37**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Good****65%**
top-5 brand share — brands hold most of the demand
**Growth**
**Good****+38.1%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Returns**
**Bad****6.2%**
return rate — above 5% kills the launch gate
**Market size**
**Bad****$80K**
$80K/yr · 355K searches
**Conversion**
**Bad****1.0%**
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 mariners shirt profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, mariners shirt is a $80K/yr Amazon United States market (355K searches/yr). The top 5 brands hold 65% of demand. Demand peaks in Sep–Oct. Verdict: Worth a look — 51/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **mariners shirt market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **4K–5K**
- avg 0–100/product
- **Revenue / yr**
- **$89K–$111K**
- units × avg price
- **Conversion rate**
- **1.0%**
- **Avg BSR**
- **#6,071**
- **Page quality**
- **0%**
- **Prime**
- **97%**
- **Sponsored**
- **87%**
- **Out of stock**
- **19.2%**
- **Avg brand age**
- **35 months**
- **Avg seller age**
- **174 days**
## **Competition: brands, sellers & click share**
Clicks spread well past the top 5 (26% combined) — an open shelf where new products get seen.
**Brands**
**36 **▲rising
**Sellers**
**36**
**Top-5 brand share**
**65%**
Top 20: 91%
**Top-5 click share**
**26%**
Top 20: 58%
**Open market**
**32%**
- Xtreme Apparrel27% - JINTING16% - CUEJDSA10% - SGYHO8% - ALLTB4% - PNORATM3%
## **mariners shirt demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +38.1% search growth over the last 90 days.
50K30KSpike '24Holiday '24Spike '25Prime Day '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct · busiest ÷ quietest = 20.2×
[**Open Trend **](https://flapen.com/research/us/sports-outdoors/mariners-shirt/trend)
## **Top mariners shirt search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **seattle mariners shirt**107K/yr+22.5%0.5% conv. - **mariners shirt**99K/yr+17.1%0.4% conv. - **mariners t shirt**23K/yr+209.2%0.6% conv. - **mariners shirt women**46K/yr+10.3%0.5% conv. - **seattle mariners shirt women**30K/yr+55.1%0.4% conv. - **womens mariners shirt**11K/yr+55.7%0.7% conv. - **seattle mariners shirt men**7K/yr+91.1%0.5% conv. - **kids mariners shirt**9K/yr+27.7%0.7% conv. - **mariners shirt men**9K/yr+46.1%0.5% conv. - **mariners tshirt**13K/yr+38.9%0.4% conv. [**All search terms **](https://flapen.com/research/us/sports-outdoors/mariners-shirt/search-terms)
## **Top mariners shirt 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%2%$2K4%$3K6%$5K8%$6K1101001K10K 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**Xtreme Apparrel Seattle Baseball Skyline Mens Fan T-Shirt (Navy T-Shirt L)**Xtreme Apparrel**$22.67**4.6★4,500 rev](https://www.amazon.com/dp/B0BGMG55V7) [2**Baseball Shirt Women Oversized Game Day Fan T-Shirt Baseball Season Short Sleeve Tops Grey**JINTING**$18.15**4.6★276 rev](https://www.amazon.com/dp/B0GGXDFTZN) [3**Womens Baseball T-Shirt Oversize Vintage Softball Graphic Short Sleeve Shirts Baseball Heart Tee Top**SGYHO**$20.83**4.1★50 rev](https://www.amazon.com/dp/B0G6FPCDSL) [4**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) [5**ALLTB Baseball Shirts Women Funny Baseball Mom Shirt Ballgame Graphic Tshirt Game Day Fan Tee Casual Short Sleeve Top Apricot**ALLTB**$22.40**4.6★352 rev](https://www.amazon.com/dp/B0F2J3PK9Z)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Baseball Shirt for Women - Baseball Tee Shirts Baseball Mom Tshirt Game Day Casual Crew Neck Short Sleeve Tops Grey**JINTING**$18.54**4 rev3mo ago](https://www.amazon.com/dp/B0GXD5M148) [**Baseball Shirt Women Striped Game Day Jersey Shirts Baseball Team Short Sleeve Tee Tops Fans Gifts Green**QLIPIN**$15.55**12 rev3mo ago](https://www.amazon.com/dp/B0GVMNKBVY) [**Baseball Shirt Women Oversized Game Day Fan T-Shirt Baseball Season Short Sleeve Tops Grey**JINTING**$18.15**276 rev6mo ago](https://www.amazon.com/dp/B0GGXDFTZN) [**Baseball Shirt Women Oversized Game Day Fan T-Shirt Baseball Season Short Sleeve Tops Blue**JINTING**$17.94**276 rev6mo ago](https://www.amazon.com/dp/B0GGXBDDMR) [**Baseball Shirt Women Oversized Game Day Fan T-Shirt Baseball Season Short Sleeve Tops Blue**JINTING**$17.75**276 rev6mo ago](https://www.amazon.com/dp/B0GGXBJWDW)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Baseball Shirt for Women - Baseball Tee Shirts Baseball Mom Tshirt Game Day Casual Crew Neck Short Sleeve Tops Grey**JINTING**$18.54**4.0★**▲ 65%**](https://www.amazon.com/dp/B0GXD5M148) [**Baseball Shirt Women Striped Game Day Jersey Shirts Baseball Team Short Sleeve Tee Tops Fans Gifts Green**QLIPIN**$15.55**4.2★**▲ 64%**](https://www.amazon.com/dp/B0GVMNKBVY) [**47 Brand MLB Mens Team Color Distressed Imprint Primary Logo Short Sleeve Baseball T-Shirt - Seattle Mariners - Navy - Medium**47**$39.23**4.5★**▲ 61%**](https://www.amazon.com/dp/B0GHPKFXHK) [**Baseball Shirt Women Oversized Game Day Fan T-Shirt Baseball Season Short Sleeve Tops Grey**JINTING**$18.54**4.6★**▲ 61%**](https://www.amazon.com/dp/B0GGXJH226) [**Baseball Shirt Women Oversized Game Day Fan T-Shirt Baseball Season Short Sleeve Tops Blue**JINTING**$17.94**4.6★**▲ 60%**](https://www.amazon.com/dp/B0GGXBDDMR)
**~~View all trending →~~**
## **What reviews say buyers love and hate about mariners shirt**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**43%
*“The fit is spot on—true to size”*
**Quality-Overall**11%
*“Cute shirt for baseball for whatever team your kid will be on and good quality”*
**Comfort-Overall**8%
*“Super Comfy”*
**Material Quality**8%
*“The material is lightweight and comfortable, which is ideal for wearing to games or just hanging out”*
**Soft Feel**5%
*“Soft Enough to Sleep In”*
**Value For Money**4%
*“The price of the T-shirt is awesome”*
**Color**3%
*“great colors”*
**Shrinkage Resistance**2%
*“Did not shrink when washed”*
**Machine Wash Suitability**2%
*“Great quality that keeps it shape after several washings”*
**Advertised Vs Actual Product**2%
*“Exactly as pictured”*
### **What buyers complain about **
**Size-Overall**55%
*“awkward fit”*
**Quality-Overall**6%
*“Cheap”*
**Arm Fit**4%
*“the arm holes are a bit large”*
**Durability**4%
*“Broke within a week”*
**Neck Fit**4%
*“18 is a bit small for my neck other than that love the color and design”*
**Transparency**4%
*“It is slightly see through though”*
**Material Quality**3%
*“I had high hopes for this purchase, expecting better craftsmanship and fabric quality”*
**Weight Heavy**3%
*“Material was heavier than expected”*
### **Top return reasons **
**Size-Overall**50%
**Chest Fit**8%
**Arm Fit**8%
**Length**7%
**Material Quality**6%
**Advertised Vs Actual Product**3%
**Sleeve Fit**2%
**Waist Fit**2%
**Color**2%
**Thin**1%
## **Common mariners shirt questions**
- **Is mariners shirt profitable to sell on Amazon United States?**
- The niche generates $80K/yr across 78 tracked products. 2 of 35 products launched in the last 360 days are still selling. 90-day search growth is +38.1%. Flapen's verdict: Worth a look (51/100).
- **How competitive is the mariners shirt niche?**
- 36 brands and 36 sellers compete. The top 5 products take 26% of clicks and top 5 brands hold 65% of demand.
- **What do buyers complain about in mariners shirt?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Arm Fit. The return rate is 6.2% — above our launch gate.
- **When does demand for mariners shirt peak?**
- Demand peaks in Sep–Oct; the busiest month runs 20.2× the quietest.
- **What does it cost to enter the mariners shirt niche?**
- Listings span $7.12–$58.89; the average listing price is $22.22 (sweet spot $15–$100). The average incumbent carries 765 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.
- 74 [**hydrogen water**](https://flapen.com/research/us/sports-outdoors/hydrogen-water)$6.6M/yr-20.2%**Worth a look**- 74 [**england soccer jersey**](https://flapen.com/research/us/sports-outdoors/england-soccer-jersey)$141K/yr>1,000%**Worth a look**- 74 [**argentina jersey**](https://flapen.com/research/us/sports-outdoors/argentina-jersey)$309K/yr>1,000%**Worth a look**- 74 [**frisbee**](https://flapen.com/research/us/sports-outdoors/frisbee)$1.9M/yr+59.7%**Launch it**- 75 [**trampoline basketball hoop**](https://flapen.com/research/us/sports-outdoors/trampoline-basketball-hoop)$2.3M/yr+49.2%**Launch it**- 75 [**golf glove**](https://flapen.com/research/us/sports-outdoors/golf-glove)$4.1M/yr+62.5%**Launch it**[**All Sports & Outdoors niches **](https://flapen.com/research/us/sports-outdoors)