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bikini shirt

Skip it

Weak search conversion (0.4%) — this niche doesn't clear our bar today.

Market size 6Growth 97Conversion 5Competition 57Returns 21Price range 70Avg price 77Brand share 41Review moat 70Quality gap 76

Growth

Incredible+204.7%

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

Avg price

Great$15.80

avg listing price — sweet spot $15–$100

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Review moat

Good709.4

avg incumbent reviews — the moat a new listing must climb

Price range

Good$10.87–$24.52

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

Competition

Good51%

top-5 click share — leaders hold, buyers still browse

Brand share

Okay80%

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

Returns

Bad6.1%

return rate — above 5% kills the launch gate

Market size

Bad$24K

$24K/yr · 363K searches

Conversion

Bad0.4%

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

According to Flapen's Amazon United States niche tracking, bikini shirt is a $24K/yr Amazon United States market (363K searches/yr). The top 5 brands hold 80% of demand. Demand peaks in May–Jun–Jul. Verdict: Skip it — 49/100.

Data updated Jul 14, 2026 · scored weekly · How we score niches

bikini shirt market data

Units sold / yr
2K–3K
avg 0–100/product
Revenue / yr
$32K–$40K
units × avg price
Conversion rate
0.4%
Avg BSR
#4,958
Page quality
0%
Prime
90%
Sponsored
93%
Out of stock
3.0%
Avg brand age
30 months
Avg seller age
168 days

Competition & brand share

The top 5 products take 51% of clicks — established leaders, but buyers still shop beyond them.

Brands

12 falling

Sellers

15

Top-5 brand share

80%

Top 20: 100%

Top-5 click share

51%

Top 20: 87%

Open market

14%

  • elescat29%
  • Ekouaer28%
  • Seyumixi12%
  • Monkay6%
  • ALIREVERIE6%
  • NUFIWI5%
  • Open — no brand owns it (6 brands, 14%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +204.7% search growth over the last 90 days.
18K13KHoliday '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: May, Jun, Jul · busiest ÷ quietest = 4.4×

Top bikini shirt search terms

  • bikini shirt86K/yr
  • bikini t shirt53K/yr
  • bikini tshirt47K/yr
  • bikini shirts for women funny33K/yr
  • bikini tshirt funny women22K/yr
  • bikini shirt cover up15K/yr
  • bikini shirts19K/yr
  • bikini tee shirt9K/yr
  • funny bikini shirt10K/yr
  • bikini t shirt funny8K/yr
All search terms

Top bikini 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.

0%10%$2K20%$5K30%$7K40%$10K1101001K10K 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 bikini shirt

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

What buyers love

Quality-Overall21%

“Good quality novelty item”

Gifting Purpose13%

“This was a great gag gift”

Advertised Vs Actual Product13%

“Exactly what it said”

Comfort-Overall6%

“but comfy”

Print Quality6%

“and so is the printing on it - not oversized - love the concept”

Size-Overall4%

“the fit is true to size”

Soft Feel4%

“The fabric is very soft”

Warmth4%

“work better in hot temps”

What buyers complain about

Material Quality29%

“Didnt like the material of the shirt”

Size-Overall24%

“Its oversized”

Thin7%

“Thin material not cotton”

Thickness7%

“Very sheer”

Wrinkles5%

“It came very wrinkled”

Print Quality5%

“I do feel the print isnt placed in the best spot”

Top return reasons

Size-Overall46%
Length15%
Material Quality14%
Quality-Overall4%
Advertised Vs Actual Product3%
Color3%
Print Quality3%
Chest Fit2%
Width2%
Sleeve Fit2%

Common questions

Is bikini shirt profitable to sell on Amazon United States?
The niche generates $24K/yr across 30 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is +204.7%. Flapen's verdict: Skip it (49/100).
How competitive is the bikini shirt niche?
12 brands and 15 sellers compete. The top 5 products take 51% of clicks and top 5 brands hold 80% of demand.
What do buyers complain about in bikini shirt?
Top complaints mined from reviews: Material Quality, Size-Overall, Thin. The return rate is 6.1% — above our launch gate.
When does demand for bikini shirt peak?
Demand peaks in May–Jun–Jul; the busiest month runs 4.4× the quietest.
What does it cost to enter the bikini shirt niche?
Listings span $10.87–$24.52; the average listing price is $15.80 (sweet spot $15–$100). The average incumbent carries 709 reviews — the moat a new listing must climb.