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57

space shirt

Worth a look

Shows a fragmented shelf (top 5 take 15% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 14Growth 75Conversion 19Competition 96Returns 35Price range 68Avg price 80Brand share 94Review moat 70Quality gap 38

Competition

Incredible15%

top-5 click share — an open shelf

Brand share

Great41%

top-5 brand share — no brand owns this niche

Avg price

Great$17.15

avg listing price — sweet spot $15–$100

Growth

Good+59.9%

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

Review moat

Good689.11

avg incumbent reviews — the moat a new listing must climb

Price range

Good$4.80–$36.58

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

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Returns

Okay4.2%

return rate — above 5% kills the launch gate

Conversion

Bad1.5%

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

Market size

Bad$56K

$56K/yr · 216K searches

According to Flapen's Amazon United States niche tracking, space shirt is a $56K/yr Amazon United States market (216K searches/yr). The top 5 brands hold 41% of demand. Demand peaks in Apr–Aug. Verdict: Worth a look — 57/100.

Data updated Jul 8, 2026 · scored weekly · How we score niches

space shirt market data

Units sold / yr
3K–4K
avg 0–100/product
Revenue / yr
$51K–$69K
units × avg price
Conversion rate
1.5%
Avg BSR
#20,181
Page quality
0%
Prime
93%
Sponsored
81%
Out of stock
4.6%
Avg brand age
37 months
Avg seller age
165 days

Competition & brand share

Clicks spread well past the top 5 (15% combined) — an open shelf where new products get seen.

Brands

64 falling

Sellers

53

Top-5 brand share

41%

Top 20: 76%

Top-5 click share

15%

Top 20: 35%

Open market

55%

  • Popfunk13%
  • Ezcosplay10%
  • BROOKLYN VERTICAL7%
  • WIPXITK6%
  • Pop Threads5%
  • MOMOLAND4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +59.9% search growth over the last 90 days.
18K13KSpike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Apr, Aug · busiest ÷ quietest = 5.1×

Top space shirt search terms

  • space shirt60K/yr
  • nasa shirt women23K/yr
  • nasa shirt kids15K/yr
  • astronaut shirt17K/yr
  • space tshirt13K/yr
  • space shirts13K/yr
  • kids nasa shirt8K/yr
  • space shirt men12K/yr
  • space t shirt9K/yr
  • nasa tshirt women8K/yr
All search terms

Top space 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%1%$5642%$1K3%$2K4%$2K1101001K10K 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 space shirt

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

What buyers love

Size-Overall23%

“Fit as expected”

Quality-Overall21%

“Good Quality”

Color7%

“A great color selection”

Comfort-Overall6%

“Comfortable”

Soft Feel6%

“Soft fabric”

Design-Overall5%

“The design is so cute”

Print Quality5%

“The print quality is also good”

Advertised Vs Actual Product5%

“Item is as advertised”

Material Quality3%

“Material is soft and comfortable”

Gifting Purpose2%

“Great Christmas gift”

What buyers complain about

Size-Overall29%

“Fits small”

Print Quality9%

“Prints are stuck together”

Quality-Overall7%

“The overall appearance is not good though”

Brightness/Shine/Glow5%

“It doesnt glow at all”

Thickness5%

“Not super thick”

Thin4%

“Too thin”

Material Quality4%

“Scratchy Material”

Color3%

“blue NASA shirt didnt exactly match the listing image”

Design-Overall3%

“The design is almost completely worn off after only 2 months of normal wear and washing”

Advertised Vs Actual Product3%

“The coloring and shirt wasn't the same as the picture appeared”

Top return reasons

Size-Overall54%
Material Quality9%
Length7%
Chest Fit6%
Advertised Vs Actual Product2%
Sleeve Fit2%
Quality-Overall2%
Waist Fit2%
Color2%
Print Quality2%

Common questions

Is space shirt profitable to sell on Amazon United States?
The niche generates $56K/yr across 175 tracked products. 2 of 29 products launched in the last 360 days are still selling. 90-day search growth is +59.9%. Flapen's verdict: Worth a look (57/100).
How competitive is the space shirt niche?
64 brands and 53 sellers compete. The top 5 products take 15% of clicks and top 5 brands hold 41% of demand.
What do buyers complain about in space shirt?
Top complaints mined from reviews: Size-Overall, Print Quality, Quality-Overall. The return rate is 4.2%.
When does demand for space shirt peak?
Demand peaks in Apr–Aug; the busiest month runs 5.1× the quietest.
What does it cost to enter the space shirt niche?
Listings span $4.80–$36.58; the average listing price is $17.15 (sweet spot $15–$100). The average incumbent carries 689 reviews — the moat a new listing must climb.