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black heart sunglasses

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Prices mostly outside the sweet spot ($4.94–$16.11) — this niche doesn't clear our bar today.

Market size 11Growth 21Conversion 76Competition 21Returns 44Price range 10Avg price 26Brand share 43Review moat 73Quality gap 19

Conversion

Great7.4%

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

Review moat

Good599.62

avg incumbent reviews — the moat a new listing must climb

Returns

Okay3.7%

return rate — above 6% kills the launch gate

Brand share

Okay79%

top-5 brand share — brands hold most of the demand

Avg price

Okay$9.09

avg listing price — sweet spot $15–$100

Growth

Bad-7.6%

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

Competition

Bad75%

top-5 click share — a locked-up shelf

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Market size

Bad$42K

$42K/yr · 63K searches

Price range

Bad$4.94–$16.11

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

Competition

The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.

Brands

12 falling

Sellers

14

Top-5 brand share

79%

Open market

17%

  • BOUBONI59%
  • Morcheiong7%
  • Ricawa5%
  • Bouiexye4%
  • YooThink4%
  • Gleyemor4%
  • Open — no brand owns it (6 brands, 17%)

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%15%$6K30%$13K45%$19K60%$25K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -7.6% search growth over the last 90 days.
3K2KPrime Day '24Spike '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Sep, Oct · busiest ÷ quietest = 3.5×

Reviews

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

What buyers love

Comfort-Overall25%

“comfortable”

Size-Overall19%

“Fit very nice”

Durability15%

“somewhat durable”

Quality-Overall15%

“Decent quality,”

Weight Light7%

“They are lightweight”

Gifting Purpose6%

“Great price for a small little gift to add into their baskets”

Fun/Entertainment Experience6%

“Super fun party favor”

Value For Money4%

“Price is right, too”

Shape/Style3%

“stylish”

Top return reasons

Size-Overall64%
Quality-Overall7%
Value For Money6%
Advertised Vs Actual Product5%
Shape/Style5%
Color3%
Functionality-Overall2%
Strength2%
Product Condition2%
Durability2%