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64

rectangle sunglasses

Worth a look

Shows no brand lock-in (top 5 brands take 36% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 11Growth 83Conversion 29Competition 95Returns 81Price range 26Avg price 65Brand share 96Review moat 48Quality gap 76

Brand share

Incredible36%

top-5 brand share — no brand owns this niche

Competition

Great20%

top-5 click share — an open shelf

Growth

Great+81.0%

90-day search growth — must beat 0% to launch

Returns

Great1.7%

return rate — above 5% kills the launch gate

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Avg price

Good£13.79

avg listing price — sweet spot $15–$100

Review moat

Okay1,658.32

avg incumbent reviews — the moat a new listing must climb

Conversion

Okay2.3%

search→purchase rate — share of searches ending in a sale

Price range

Okay£3.71–£333.18

cheapest to priciest tracked listing — scored on the share inside $15–$100

Market size

Bad£44K

£44K/yr · 136K searches

According to Flapen's Amazon United Kingdom niche tracking, rectangle sunglasses is a £44K/yr Amazon United Kingdom market (136K searches/yr). The top 5 brands hold 36% of demand. Demand peaks in May–Jun–Jul–Aug. Verdict: Worth a look — 64/100.

Data updated Jul 23, 2026 · scored weekly · How we score niches

rectangle sunglasses market data

Units sold / yr
3K–3K
avg 0–100/product
Revenue / yr
£34K–£41K
units × avg price
Conversion rate
2.3%
Avg BSR
#483
Page quality
0%
Prime
100%
Sponsored
95%
Out of stock
3.3%
Avg brand age
37 months
Avg seller age
168 days

Competition & brand share

Clicks spread well past the top 5 (20% combined) — an open shelf where new products get seen.

Brands

58 rising

Sellers

64

Top-5 brand share

36%

Top 20: 76%

Top-5 click share

20%

Top 20: 49%

Open market

60%

  • kimorn9%
  • YAMEIZE8%
  • FOURCHEN7%
  • Long Keeper7%
  • LJCZKA5%
  • LINVO4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +81.0% search growth over the last 90 days.
5K3KSpike '24Spike '25Prime Day '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 3.2×

Top rectangle sunglasses search terms

  • retro sunglasses22K/yr
  • square sunglasses15K/yr
  • rectangle sunglasses14K/yr
  • mens square sunglasses9K/yr
  • retro sunglasses women10K/yr
  • rectangle sunglasses men8K/yr
  • vintage sunglasses8K/yr
  • square sunglasses men8K/yr
  • square glasses12K/yr
  • sunglasses square4K/yr
All search terms

Top rectangle sunglasses 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.

0%2%£8794%£2K6%£3K8%£4K1101001K10K100K Reviews — right = deep review moat Market 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.

What buyers say about rectangle sunglasses

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall26%

“Great quality glasses”

Value For Money22%

“Money well spent”

Size-Overall10%

“Fits well”

Comfort-Overall8%

“Comfortable fit”

Advertised Vs Actual Product6%

“As described”

Weight Light5%

“Super lightweight and look great”

Shape/Style4%

“Style is good”

Design-Overall3%

“Fantastic design”

Strength3%

“Lovely pair of sturdy sunglasses”

Color2%

“Super shades”

What buyers complain about

Size-Overall16%

“don't seem to fit correctly”

Quality-Overall16%

“Low quality”

Durability15%

“Easy to break”

Strength6%

“Not very strong”

Value For Money5%

“Look more expensive”

Color3%

“Would have liked a darker pair in which other colours are available”

Functionality-Overall2%

“Dont perform well”

Lenses2%

“Lenses quite large”

Material Quality2%

“Product is cheap material plastic made”

Advertised Vs Actual Product1%

“Different from the description”

Top return reasons

Size-Overall59%
Quality-Overall9%
Shape/Style8%
Advertised Vs Actual Product3%
Width3%
Color2%
Functionality-Overall2%
Comfort-Overall2%
Defective Material/Parts2%
Strength1%

Common questions

Is rectangle sunglasses profitable to sell on Amazon United Kingdom?
The niche generates £44K/yr across 99 tracked products. 4 of 15 products launched in the last 360 days are still selling. 90-day search growth is +81.0%. Flapen's verdict: Worth a look (64/100).
How competitive is the rectangle sunglasses niche?
58 brands and 64 sellers compete. The top 5 products take 20% of clicks and top 5 brands hold 36% of demand.
What do buyers complain about in rectangle sunglasses?
Top complaints mined from reviews: Size-Overall, Quality-Overall, Durability. The return rate is 1.7%.
When does demand for rectangle sunglasses peak?
Demand peaks in May–Jun–Jul–Aug; the busiest month runs 3.2× the quietest.
What does it cost to enter the rectangle sunglasses niche?
Listings span £3.71–£333.18; the average listing price is £13.79 (sweet spot $15–$100). The average incumbent carries 1,658 reviews — the moat a new listing must climb.