Is cousin crew shirts profitable to sell on Amazon United States?

The niche generates $44K/yr across 101 tracked products. 4 of 46 products launched in the last 360 days are still selling. 90-day search growth is +50.4%. Flapen's verdict: Skip it (49/100).

How competitive is the cousin crew shirts niche?

36 brands and 35 sellers compete. The top 5 products take 22% of clicks and top 5 brands hold 60% of demand.

What do buyers complain about in cousin crew shirts?

Top complaints mined from reviews: Size-Overall, Advertised Vs Actual Product, Color. The return rate is 4.4%.

When does demand for cousin crew shirts peak?

Demand peaks in Jun–Jul–Dec; the busiest month runs 3.2× the quietest.

What does it cost to enter the cousin crew shirts niche?

Listings span $7.10–$21.23; the average listing price is $12.77 (sweet spot $15–$100). The average incumbent carries 156 reviews — the moat a new listing must climb.

cousin crew shirts

Skip it

Weak search conversion (0.7%) — this niche doesn't clear our bar today.

Competition

Great22%

top-5 click share — an open shelf

Review moat

Great156.39

avg incumbent reviews — the moat a new listing must climb

Brand share

Good60%

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

Growth

Good+50.4%

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

Avg price

Good$12.77

avg listing price — sweet spot $15–$100

Price range

Okay$7.10–$21.23

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

Returns

Okay4.4%

return rate — above 5% kills the launch gate

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Market size

Bad$44K

$44K/yr · 471K searches

Conversion

Bad0.7%

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

According to Flapen's Amazon United States niche tracking, cousin crew shirts is a $44K/yr Amazon United States market (471K searches/yr). The top 5 brands hold 60% of demand. Demand peaks in Jun–Jul–Dec. Verdict: Skip it — 49/100.

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

cousin crew shirts market data

Units sold / yr: 4K–5K; avg 0–100/product
Revenue / yr: $51K–$64K; units × avg price
Conversion rate: 0.7%
Avg BSR: #8,080
Page quality: 0%
Prime: 98%
Sponsored: 86%
Out of stock: 1.6%
Avg brand age: 27 months
Avg seller age: 168 days

Competition & brand share

Clicks spread well past the top 5 (22% combined) — an open shelf where new products get seen.

Brands

36 rising

Sellers

Top-5 brand share

60%

Top 20: 93%

Top-5 click share

22%

Top 20: 55%

Open market

35%

Ayalinggo23%
luethbiezx11%
SANIXJOO11%
Sineeko9%
MULOIUDZ7%
VISGOGO5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +50.4% search growth over the last 90 days.

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

Open Trend

Top cousin crew shirts search terms

cousin crew shirts for kids178K/yr +56.4%0.4% conv.
cousin crew105K/yr +21.6%0.6% conv.
cousin crew shirts40K/yr +82.9%0.4% conv.
cousin shirts26K/yr +99.5%0.2% conv.
cousin shirts for kids24K/yr +22.5%0.2% conv.
cousin crew shirt16K/yr +70.0%0.4% conv.
cousin shirt19K/yr +26.6%0.2% conv.
cousins shirts for kids9K/yr +87.7%0.2% conv.
cousin tshirt8K/yr +53.5%0.0% conv.
matching cousin outfits7K/yr +51.6%0.2% conv.

All search terms

Top cousin crew shirts 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Ayalinggo Cousin Crew Toddler Baby Boy Girl Big Cousin Little Cousin Matching Outfits T Shirt Top Summer Clothes Cousin Crew Tee 18-24 Months

Ayalinggo$10.824.6★185 rev

Cousin Crew Toddler Baby Boy Girl Big Cousin Little Cousin Matching Outfits T Shirt Top Summer Clothes Cousin Crew Tee 3-4T

Ayalinggo$12.234.6★185 rev

MULOIUDZ Kid Toddler Boys Cousins Shirts Cool Cousins Club T Shirt Announcement Outfit Sibling Reveal Tees Summer Tops(Green 4-5T)

MULOIUDZ$14.774.8★10 rev

Cousin Crew Shirt for Toddler Boys Girls Cousin Matching Outfits T-Shirt Big Cousin Crewneck Pullover Tee Summer (Apricot 6-7 Years)

luethbiezx$10.144.5★18 rev

The Childrens Place Boys Family Mom Dad Sibiling Short Sleeve Graphic T-Shirts Multipacks Cousin Crew Black 2-Pack Large

The Children's Place$12.564.8★2,783 rev

Newest

by launch date

SUWATOIN Cousin Crew Shirts for Kids 4th of July 2-6 Years Toddler Boys Girls Matching Outfits T Shirt American Falg Top

SUWATOIN$9.612 rev

2mo ago

MULOIUDZ Kid Toddler Boys Cousins Shirts Cool Cousins Club T Shirt Announcement Outfit Sibling Reveal Tees Summer Tops(Green 4-5T)

MULOIUDZ$14.7710 rev

3mo ago

Kids Toddler Boys Girls Cousin Crew 4th of July Shirt USA 250th Anniversary Flag Glasses Patriotic Shirt (Red 4-5 Years)

luethbiezx$10.448 rev

3mo ago

Toddler Baby Boy T-Shirt Summer Tee Letter Graphic Print Short Sleeve Crew Neck Tops Kids Cute Clothes (Raccoon Cousin Apricot 18-24 Months)

Sejardin$9.3832 rev

5mo ago

Cousin Crew 2026 Summer Vacation Beach Family Trips Matching T Shirts Tees for Men Women Kids

Family Reunion Vibes Cousin Camp making memories$15.137 rev

6mo ago

What buyers say about cousin crew shirts

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

What buyers love

Size-Overall24%

“Great fit”

Quality-Overall19%

“It's a decent quality, simple t-shirt”

Material Quality9%

“Good material”

Print Quality6%

“The screen printing is clear, and the material feels soft and decent quality”

Soft Feel6%

“The fabric feels soft and comfortable, which is important for active toddlers and young children”

Color5%

“The bright red color”

Breathability4%

“breathable”

Durability3%

“Cute and durable shirts”

Comfort-Overall3%

“comfortable”

Design-Overall3%

“The patriotic design is fun, festive, and perfect for celebrating Independence Day, family reunions, parades, barbecues, and other summer events”

What buyers complain about

Size-Overall23%

“sizes off”

Advertised Vs Actual Product12%

“the graphic does not match the graphic in the photo”

Color10%

“I would have liked a second color to the print”

Quality-Overall7%

“Poor quality”

Product Condition5%

“Not brand new”

Thickness3%

“The material is a little thin”

Print Quality2%

“I would have liked a second color to the print”

Top return reasons

Size-Overall65%

Color10%

Length7%

Advertised Vs Actual Product3%

Chest Fit2%

Quality-Overall2%

Material Quality2%

Value For Money2%

Sleeve Fit1%

Shoulder Fit1%

Common questions

Is cousin crew shirts profitable to sell on Amazon United States?: The niche generates $44K/yr across 101 tracked products. 4 of 46 products launched in the last 360 days are still selling. 90-day search growth is +50.4%. Flapen's verdict: Skip it (49/100).
How competitive is the cousin crew shirts niche?: 36 brands and 35 sellers compete. The top 5 products take 22% of clicks and top 5 brands hold 60% of demand.
What do buyers complain about in cousin crew shirts?: Top complaints mined from reviews: Size-Overall, Advertised Vs Actual Product, Color. The return rate is 4.4%.
When does demand for cousin crew shirts peak?: Demand peaks in Jun–Jul–Dec; the busiest month runs 3.2× the quietest.
What does it cost to enter the cousin crew shirts niche?: Listings span $7.10–$21.23; the average listing price is $12.77 (sweet spot $15–$100). The average incumbent carries 156 reviews — the moat a new listing must climb.