cap
Launch itA $856K/yr market growing +73.8% this quarter with returns at 1.7% — clears our launch bar.
Competition
Great26%top-5 click share — an open shelf
Brand share
Great50%top-5 brand share — no brand owns this niche
Growth
Great+73.8%90-day search growth — must beat 0% to launch
Returns
Great1.7%return rate — above 5% kills the launch gate
Market size
Great£856K£856K/yr · 5.0M searches
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Price range
Good£4.15–£25.87cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Okay£10.96avg listing price — sweet spot $15–$100
Review moat
Bad4,022.41avg incumbent reviews — the moat a new listing must climb
Conversion
Bad1.6%search→purchase rate — share of searches ending in a sale
According to Flapen's Amazon United Kingdom niche tracking, cap is a £856K/yr Amazon United Kingdom market (5.0M searches/yr). The top 5 brands hold 50% of demand. Demand peaks in Jun–Jul. Verdict: Launch it — 66/100.
Data updated Jul 23, 2026 · scored weekly · How we score niches
cap market data
- Units sold / yr
- 60K–80K
- avg 500–750/product
- Revenue / yr
- £658K–£877K
- units × avg price
- Conversion rate
- 1.6%
- Avg BSR
- #88
- Page quality
- 0%
- Prime
- 97%
- Sponsored
- 79%
- Out of stock
- 1.4%
- Avg brand age
- 49 months
- Avg seller age
- 169 days
Competition & brand share
Clicks spread well past the top 5 (26% combined) — an open shelf where new products get seen.Brands
41 falling
Sellers
126
Top-5 brand share
50%
Top 20: 85%
Top-5 click share
26%
Top 20: 58%
Open market
46%
- New Era24%
- FURTALK10%
- Under Armour8%
- NIKE4%
- Enwokran4%
- ViEinkaufen4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +73.8% search growth over the last 90 days.Peak months: Jun, Jul · busiest ÷ quietest = 1.9×
Top cap search terms
- cap835K/yr
- baseball cap mens417K/yr
- baseball cap432K/yr
- mens cap340K/yr
- hat387K/yr
- mens baseball caps231K/yr
- caps for men213K/yr
- trucker caps for men195K/yr
- mens hats & caps323K/yr
- mens caps176K/yr
Top cap 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
New Era Unisex MLB 9Forty League Basic Cap
New Era£12.734.6★9,403 rev
FURTALK Baseball Caps Mens Mountain Embroidery Dad Hat Unstructured Soft Vintage Washed Cotton Outdoor Baseball Cap Grey L
FURTALK£10.984.4★226 rev
New Era Unisex Mlb League Essential 9Forty Cap
New Era£12.284.6★4,677 rev
New Era Unisex Mlb Clean AFrame Trucker Cap
New Era£15.234.6★1,457 rev
New Era Unisex Mlb Clean AFrame Trucker Cap
New Era£15.244.5★3,040 rev
Newest
by launch date
adidas Unisex Baseball Lightweights Metal Hat Legend Ink OSFM
adidas£8.433,015 rev
Amazon Essentials Mens Wide Brim Sun Hat Grey L-XL
Amazon Essentials£13.76136 rev
Dzpuhuojz 3 Pack Baseball Caps Full Cotton Mens Hats & Caps Adjustment Hats for Golf Running Sports Outdoor Workouts Blue+Grey+Black Caps (White Border)
Dzpuhuojz£7.37550 rev
ViEinkaufen 3 Pack Distressed Baseball Caps Adjustable Vintage Washed Hat
ViEinkaufen£10.05243 rev
FURTALK Baseball Caps Mens Adjustable Mesh Back Trucker Caps for Men Classics Sunmmer Sun Hat Black
FURTALK£10.8944 rev
Trending
90-day click momentumAmazon Essentials Mens Wide Brim Sun Hat Grey L-XL
Amazon Essentials£13.764.3★
adidas Unisex Baseball Lightweights Metal Hat Legend Ink OSFM
adidas£8.434.6★
FURTALK Baseball Caps Mens Adjustable Mesh Back Trucker Caps for Men Classics Sunmmer Sun Hat Black
FURTALK£10.894.4★
FURTALK Womens Mens Baseball Cap Washed Cotton Adjustable Soft Caps Unisex Unstructured Vintage Baseball Hats Black M
FURTALK£9.214.3★
FURTALK Baseball Caps Mens Mountain Embroidery Dad Hat Unstructured Soft Vintage Washed Cotton Outdoor Baseball Cap Grey L
FURTALK£10.984.4★
What buyers say about cap
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent quality”
“fits my head comfortably”
“Excellent value”
“Colours good too and great selection”
“Its comfortable”
“Its exactly how it looks in the picture”
“very light easy fitting”
“Strong material”
“Adjustable”
“Great for a gift”
What buyers complain about
“On the small size”
“Very cheap and I guess you get what you pay for”
“Odd shape”
“a bit expensive”
“it's a completely different colour”
“why they changed the material i dont no”
“Not the size advertised”
“Not comfortable at all”
“my only note is sometimes you get one where the adjustable strap doesnt hold properly”
“Broke after a few times wearing”
Top return reasons
Common questions
- Is cap profitable to sell on Amazon United Kingdom?
- The niche generates £856K/yr across 75 tracked products. 4 of 11 products launched in the last 360 days are still selling. 90-day search growth is +73.8%. Flapen's verdict: Launch it (66/100).
- How competitive is the cap niche?
- 41 brands and 126 sellers compete. The top 5 products take 26% of clicks and top 5 brands hold 50% of demand.
- What do buyers complain about in cap?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Shape/Style. The return rate is 1.7%.
- When does demand for cap peak?
- Demand peaks in Jun–Jul; the busiest month runs 1.9× the quietest.
- What does it cost to enter the cap niche?
- Listings span £4.15–£25.87; the average listing price is £10.96 (sweet spot $15–$100). The average incumbent carries 4,022 reviews — the moat a new listing must climb.