Is kids undershirts profitable to sell on Amazon United States?

The niche generates $73K/yr across 88 tracked products. 5 of 22 products launched in the last 360 days are still selling. 90-day search growth is +6.9%. Flapen's verdict: Skip it (46/100).

How competitive is the kids undershirts niche?

21 brands and 35 sellers compete. The top 5 products take 19% of clicks and top 5 brands hold 74% of demand.

What do buyers complain about in kids undershirts?

Top complaints mined from reviews: Size-Overall, Material Quality, Advertised Vs Actual Product. The return rate is 3.8%.

What does it cost to enter the kids undershirts niche?

Listings span $7.99–$34.94; the average listing price is $19.02 (sweet spot $15–$100). The average incumbent carries 19,872 reviews — the moat a new listing must climb.

Kids Undershirts

Skip it

A deep review moat (19,872 avg reviews) — this niche doesn't clear our bar today.

Competition

Incredible19%

top-5 click share — an open shelf

Avg price

Great$19.02

avg listing price — sweet spot $15–$100

Price range

Good$7.99–$34.94

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

Brand share

Good74%

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

Returns

Okay3.8%

return rate — above 5% kills the launch gate

Conversion

Okay2.9%

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

Growth

Okay+6.9%

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

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Market size

Bad$73K

$73K/yr · 133K searches

Review moat

Bad19,872.23

avg incumbent reviews — the moat a new listing must climb

Is kids undershirts profitable on Amazon?

According to Flapen's Amazon United States niche tracking, kids undershirts is a $73K/yr Amazon United States market (133K searches/yr). The top 5 brands hold 74% of demand. Verdict: Skip it — 46/100.

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

kids undershirts market size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.

Units sold / yr: 4K–5K; avg 0–100/product
Revenue / yr: $76K–$95K; units × avg price
Conversion rate: 2.9%
Avg BSR: #150
Page quality: 0%
Prime: 100%
Sponsored: 81%
Out of stock: 1.6%
Avg brand age: 37 months
Avg seller age: 152 days

Competition: brands, sellers & click share

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

Brands

21 rising

Sellers

Top-5 brand share

74%

Top 20: 100%

Top-5 click share

19%

Top 20: 51%

Open market

23%

Fruit of the Loom27%
Hanes23%
Gnodio9%
Feathers8%
Brix7%
The Children's Place3%

kids undershirts demand & seasonality

Weekly Amazon search volume, last 49 weeks — +6.9% search growth over the last 90 days.

Open Trend

Top kids undershirts search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

boys undershirts size 14-1621K/yr +15.6%5.1% conv.
boys undershirts 10-1220K/yr +4.7%4.7% conv.
kids undershirts14K/yr +3.7%1.2% conv.
boys under shirt12K/yr +45.1%1.3% conv.
camisillas para nios10K/yr +21.3%0.8% conv.
boys under shirts9K/yr +27.4%1.1% conv.
boys undershirts size 6-710K/yr -23.0%6.0% conv.
boys under shirts size 10-127K/yr +29.5%3.1% conv.
boys under shirts size 14-165K/yr +49.3%4.3% conv.
boys undershirts size 8-1010K/yr -55.7%2.4% conv.

All search terms

Top kids undershirts products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

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

Hanes Boys Undershirt Tank Top Pack Kids Tank Undershirts Cool Comfort Moisture-Wicking Sleeveless Shirts White - 10 Pack Large

Hanes$20.914.6★19,107 rev

Fruit Of The Loom Boys Eversoft Cotton Undershirts T Shirts & Tank Tops Underwear T Shirt - Boys - 7 Pack - White X-Large US

Fruit of the Loom$15.314.7★81,387 rev

Hanes Boys Undershirt Tank Top Pack Kids Tank Undershirts Cool Comfort Moisture-Wicking Sleeveless Shirts White - 10 Pack Medium

Hanes$21.024.6★19,107 rev

Fruit Of The Loom Boys Eversoft Cotton Undershirts T Shirts & Tank Tops Underwear Tank - Toddler - 10 Pack - White 4-5T US

Fruit of the Loom$18.594.7★81,387 rev

Haloumoning Boys Tank Tops Kids Sleeveless Crewneck Undershirts Workout T-Shirts 5-14 Years White

Haloumoning$8.604.7★42 rev

Newest

by launch date

Feathers Boys Tagless Cotton Undershirts 5-Pack Soft Breathable White Tank Top Base Layer Sizes 218

Feathers$21.6729 rev

3mo ago

Haloumoning Boys Tank Tops Kids Sleeveless Crewneck Undershirts Workout T-Shirts 5-14 Years White

Haloumoning$8.6042 rev

5mo ago

Fruit Of The Loom Boys Eversoft Cotton Undershirts T Shirts & Tank Tops Underwear T Shirt - Boys - 5 Pack - White Small US

Fruit of the Loom$15.7881,387 rev

8mo ago

Gnodio 5 Pack Boys Tank Tops Boys Undershirts Kids Cotton Undershirts Tees Sleeveless Tank Tops Shirts Color B 9-10Y

Gnodio$19.53689 rev

2y ago

Gnodio 5 Pack Boys Tank Tops Boys Undershirts Kids Cotton Undershirts Tees Sleeveless Tank Tops Shirts Color A 9-10Y

Gnodio$21.66689 rev

2y ago

What reviews say buyers love and hate about kids undershirts

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

What buyers love

Size-Overall23%

“like a fitted”

Quality-Overall15%

“Best Quality”

Soft Feel8%

“The material is soft”

Comfort-Overall7%

“very comfy”

Value For Money7%

“Great Value”

Material Quality6%

“Good material”

Color3%

“the colors are bright”

Advertised Vs Actual Product3%

“Exactly as shown in the picture”

Durability3%

“Soft and durable”

Warmth2%

“They help with him staying cool in the summer he gets real hot real easily”

What buyers complain about

Size-Overall29%

“Horrible fit”

Material Quality10%

“The material also feels cheap”

Advertised Vs Actual Product8%

“False description”

Quality-Overall8%

“POOR QUALITY”

Thickness6%

“Runs Small and Feels Thick”

Shrinkage Resistance5%

“Shrunk”

Stitch/Finish/Polish4%

“These shirts were sewn completely crooked”

Color3%

“Didn't receive colors shown”

Durability2%

“honestly doesn't feel as durable as other versions Ive bought in the past”

Transparency1%

“almost see-through which I suspected with them being listed as mesh”

Top return reasons

Size-Overall64%

Length11%

Chest Fit6%

Material Quality5%

Thin3%

Advertised Vs Actual Product3%

Sleeve Fit1%

Value For Money1%

Width1%

Quality-Overall1%

Common kids undershirts questions

Is kids undershirts profitable to sell on Amazon United States?: The niche generates $73K/yr across 88 tracked products. 5 of 22 products launched in the last 360 days are still selling. 90-day search growth is +6.9%. Flapen's verdict: Skip it (46/100).
How competitive is the kids undershirts niche?: 21 brands and 35 sellers compete. The top 5 products take 19% of clicks and top 5 brands hold 74% of demand.
What do buyers complain about in kids undershirts?: Top complaints mined from reviews: Size-Overall, Material Quality, Advertised Vs Actual Product. The return rate is 3.8%.
What does it cost to enter the kids undershirts niche?: Listings span $7.99–$34.94; the average listing price is $19.02 (sweet spot $15–$100). The average incumbent carries 19,872 reviews — the moat a new listing must climb.