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47

extra long shower curtains 96 inches

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A small market ($61K/yr) — this niche doesn't clear our bar today.

Market size 15Growth 23Conversion 20Competition 95Returns 43Price range 82Avg price 95Brand share 80Review moat 22Quality gap 24

Competition

Incredible19%

top-5 click share — an open shelf

Avg price

Incredible$24.92

avg listing price — sweet spot $15–$100

Price range

Great$8.44–$49.93

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

Brand share

Great55%

top-5 brand share — no brand owns this niche

Returns

Okay3.8%

return rate — above 6% kills the launch gate

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-3.6%

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

Review moat

Bad9,789.65

avg incumbent reviews — the moat a new listing must climb

Conversion

Bad1.6%

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

Market size

Bad$61K

$61K/yr · 154K searches

Competition

Clicks spread well past the top 5 (19% combined) — an open shelf where new products get seen.

Brands

41 falling

Sellers

53

Top-5 brand share

55%

Open market

40%

  • BTTN13%
  • MIULEE12%
  • AmazerBath11%
  • Dynamene10%
  • XOGUIBO9%
  • Naturoom5%

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%2%$1K4%$2K6%$4K8%$5K101001K10K100K1.0M Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 127 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -3.6% search growth over the last 90 days.
6K4KHoliday '24Spike '25Prime Day '25SepDecMarJunAugNovMarMay

Peak months: Jan, Jul, Aug · busiest ÷ quietest = 1.7×

Reviews

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

What buyers love

Quality-Overall24%

“Awesome Quality”

Advertised Vs Actual Product8%

“As advertised”

Upholstery/Fabric Quality7%

“Great fabric”

Value For Money7%

“Excellent Value”

Material Quality6%

“Beautiful material”

Color5%

“Color is accurate”

Size-Overall5%

“Fits Tub Shower”

Design-Overall3%

“well constructed”

Assembly/Installation3%

“Easy to set up”

Thickness3%

“thicknesss provides excellent barrier”

What buyers complain about

Thickness9%

“The material is so thin”

Quality-Overall8%

“Cheap quality”

Size-Overall7%

“Super long”

Material Quality6%

“Not a good material”

Water Resistance5%

“NOT WATER RESISTANT”

Advertised Vs Actual Product5%

“False advertising”

Weight Heavy5%

“Too heavy”

Value For Money4%

“Looks expensive even though its simple”

Color4%

“Color is off”

Smell3%

“Has a fishy smell upon arrival”

Top return reasons

Size-Overall34%
Color21%
Material Quality11%
Advertised Vs Actual Product7%
Quality-Overall4%
Thin4%
Value For Money3%
Display Colors2%
Weight Heavy1%
Shape/Style1%