green day t-shirt
Skip itA small market ($31K/yr) — this niche doesn't clear our bar today.
Returns
Incredible0.8%return rate — above 5% kills the launch gate
Review moat
Great236.24avg incumbent reviews — the moat a new listing must climb
Competition
Good44%top-5 click share — leaders hold, buyers still browse
Avg price
Good£14.05avg listing price — sweet spot $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Price range
Okay£5.11–£19.92cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Okay2.1%search→purchase rate — share of searches ending in a sale
Growth
Bad-2.5%90-day search growth — must beat 0% to launch
Brand share
Bad96%top-5 brand share — brand-locked demand
Market size
Bad£31K£31K/yr · 107K searches
According to Flapen's Amazon United Kingdom niche tracking, green day t-shirt is a £31K/yr Amazon United Kingdom market (107K searches/yr). The top 5 brands hold 96% of demand. Demand peaks in Dec. Verdict: Skip it — 42/100.
Data updated Jul 23, 2026 · scored weekly · How we score niches
green day t-shirt market data
- Units sold / yr
- 2K–2K
- avg 0–100/product
- Revenue / yr
- £21K–£28K
- units × avg price
- Conversion rate
- 2.1%
- Avg BSR
- #4,697
- Page quality
- 0%
- Prime
- 57%
- Sponsored
- 19%
- Out of stock
- 4.0%
- Avg brand age
- 39 months
- Avg seller age
- 182 days
Competition & brand share
The top 5 products take 44% of clicks — established leaders, but buyers still shop beyond them.Brands
9 rising
Sellers
39
Top-5 brand share
96%
Top 20: 100%
Top-5 click share
44%
Top 20: 83%
Open market
3%
- Rock Off officially licensed products38%
- Green Day38%
- Hot Topic17%
- Zavvi2%
- HYMN1%
- Zaitun1%
- Open — no brand owns it (3 brands, 3%)
Demand & seasonality
Weekly Amazon search volume, last 103 weeks — -2.5% search growth over the last 90 days.Peak months: Dec · busiest ÷ quietest = 2.7×
Top green day t-shirt search terms
- green day44K/yr
- green day t-shirt18K/yr
- greenday11K/yr
- greenday t-shirt7K/yr
- green day t shirt4K/yr
- green day tshirt3K/yr
- green day merchandise10K/yr
- green day merch4K/yr
- green day shirt3K/yr
- greenday merch3K/yr
Top green day t-shirt 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
Green Day Dookie 1994 Tour T-Shirt (Medium)
Rock Off officially licensed products£13.834.7★127 rev

Rock Off Officially Licensed Products Green Day American Idiot Baseball Cap One Size
Rock Off officially licensed products£13.004.8★9 rev

Green Day Dookie 1994 Tour T-Shirt (Large)
Rock Off officially licensed products£13.384.7★127 rev

Green Day Idiot Flag T-Shirt White Small
Green Day£15.775.0★2 rev

Green Day Mens American Idiot Short Sleeve T-Shirt Black Medium
Hot Topic£12.404.6★1,244 rev
Newest
by launch date
HYMN Mens Summer Shirts 2026 | Breathable Lightweight Casual Button Down Short Sleeve Shirt | 6 Colours Easy Care Durable Buttons for Office Holiday & Daily Wear (Green L)
HYMN£15.0411 rev

Green Day Dookie 90s Souvenir T-Shirt Forest Green Small
Green Day£6.410 rev

Green Day Idiot Flag T-Shirt White Small
Green Day£15.772 rev

Green Day Idiot Flag T-Shirt White XX-Large
Green Day£5.112 rev

Green Day Nimrod Spray T-Shirt White Medium
Green Day£17.631 rev
Trending
90-day click momentum
Green Day Mens Flower Pot T-Shirt Grey Medium
Rock Off officially licensed products£10.934.6★

Green Day Dookie 90s Souvenir T-Shirt Forest Green Small
Green Day£6.410.0★

Rockoff Trade Mens Green Day 1994 Tour T-Shirt Black Small (Size:Small)
Rock Off officially licensed products£12.010.0★

Green Day Drips T-Shirt (medium)
Green Day£13.024.2★

HYMN Mens Summer Shirts 2026 | Breathable Lightweight Casual Button Down Short Sleeve Shirt | 6 Colours Easy Care Durable Buttons for Office Holiday & Daily Wear (Green L)
HYMN£15.043.5★
What buyers say about green day t-shirt
What buyers praise and complain about, mined from review topics.What buyers love
“Fits perfectly”
“Brilliant product”
“comfortable for daily use or gym”
“Value for money”
“I like the colour and the price”
“I really like the design on this one”
“Print looks great”
What buyers complain about
“has stretched out after 2/3 wears”
“bit big around the neck -”
Top return reasons
Common questions
- Is green day t-shirt profitable to sell on Amazon United Kingdom?
- The niche generates £31K/yr across 37 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -2.5%. Flapen's verdict: Skip it (42/100).
- How competitive is the green day t-shirt niche?
- 9 brands and 39 sellers compete. The top 5 products take 44% of clicks and top 5 brands hold 96% of demand.
- What do buyers complain about in green day t-shirt?
- Top complaints mined from reviews: Stretchability/Expandability/Elasticity, Neck Fit. The return rate is 0.8%.
- When does demand for green day t-shirt peak?
- Demand peaks in Dec; the busiest month runs 2.7× the quietest.
- What does it cost to enter the green day t-shirt niche?
- Listings span £5.11–£19.92; the average listing price is £14.05 (sweet spot $15–$100). The average incumbent carries 236 reviews — the moat a new listing must climb.