Skip to content
55

size 5 girls underwear

Worth a look

Shows low returns (1.3%), but strong incumbent ratings (4.8★) keeps it on the watch list.

Market size 25Growth 36Conversion 63Competition 86Returns 89Price range 67Avg price 75Brand share 79Review moat 21Quality gap 16

Returns

Great1.3%

return rate — above 5% kills the launch gate

Competition

Great29%

top-5 click share — an open shelf

Brand share

Great56%

top-5 brand share — no brand owns this niche

Avg price

Great$15.03

avg listing price — sweet spot $15–$100

Price range

Good$9.30–$26.48

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

Conversion

Good5.6%

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

Growth

Okay+8.9%

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

Market size

Okay$103K

$103K/yr · 122K searches

Review moat

Bad10,461.63

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.8★

avg incumbent rating — lower means beatable quality

According to Flapen's Amazon United States niche tracking, size 5 girls underwear is a $103K/yr Amazon United States market (122K searches/yr). The top 5 brands hold 56% of demand. Demand peaks in Jul–Aug. Verdict: Worth a look — 55/100.

Data updated Jul 11, 2026 · scored weekly · How we score niches

size 5 girls underwear market data

Units sold / yr
6K–8K
avg 100–250/product
Revenue / yr
$90K–$120K
units × avg price
Conversion rate
5.6%
Avg BSR
#41
Page quality
0%
Prime
100%
Sponsored
88%
Out of stock
0.2%
Avg brand age
44 months
Avg seller age
143 days

Competition & brand share

Clicks spread well past the top 5 (29% combined) — an open shelf where new products get seen.

Brands

25 rising

Sellers

34

Top-5 brand share

56%

Top 20: 98%

Top-5 click share

29%

Top 20: 68%

Open market

38%

  • Fruit of the Loom17%
  • Winging Day12%
  • Hanes12%
  • Sladatona8%
  • Boboking7%
  • Family Feeling5%

Demand & seasonality

Weekly Amazon search volume, last 97 weeks — +8.9% search growth over the last 90 days.
7K5KHoliday '24Spike '25Prime Day '25Black Friday '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jul, Aug · busiest ÷ quietest = 2.5×

Top size 5 girls underwear search terms

  • size 5 girls underwear20K/yr
  • girls size 5 underwear13K/yr
  • girls panties size 514K/yr
  • size 5 underwear girls11K/yr
  • girl underwear size 55K/yr
  • 5t cotton underwear girls5K/yr
  • 4t 5t girls underwear6K/yr
  • little girls underwear size 57K/yr
  • 4t/5t girls underwear5K/yr
  • 4t girls panties5K/yr
All search terms

Top size 5 girls underwear 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%2%$2K4%$4K6%$6K8%$8K1001K10K100K 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 size 5 girls underwear

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

What buyers love

Size-Overall20%

“not too tight”

Quality-Overall16%

“Excellent quality”

Comfort-Overall12%

“Super comfortable”

Soft Feel11%

“Comfy and soft”

Value For Money4%

“Good price”

Material Quality4%

“The material is extremely soft”

Color3%

“Beautiful colors”

Design-Overall3%

“Cute designs”

Thickness2%

“Love the thick cotton”

Durability2%

“Very durable”

What buyers complain about

Size-Overall27%

“Fits small”

Quality-Overall7%

“Inferior quality”

Advertised Vs Actual Product7%

“Misleading title”

Stretchability/Expandability/Elasticity4%

“stretch out very easily”

Waist Fit4%

“the waist band DUG in”

Durability3%

“Fell apart on the very first wear”

Stitch/Finish/Polish3%

“Poor stitching”

Thickness2%

“The waist band is thicker than other underwear”

Color2%

“princesses that were not just white”

Gap/Hole2%

“our main issue is the leg holes being too big”

Top return reasons

Size-Overall65%
Waist Fit10%
Advertised Vs Actual Product4%
Material Quality4%
Thigh Fit3%
Length1%
Color1%
Thin1%
Value For Money1%
Quality-Overall1%

Common questions

Is size 5 girls underwear profitable to sell on Amazon United States?
The niche generates $103K/yr across 60 tracked products. 7 of 9 products launched in the last 360 days are still selling. 90-day search growth is +8.9%. Flapen's verdict: Worth a look (55/100).
How competitive is the size 5 girls underwear niche?
25 brands and 34 sellers compete. The top 5 products take 29% of clicks and top 5 brands hold 56% of demand.
What do buyers complain about in size 5 girls underwear?
Top complaints mined from reviews: Size-Overall, Quality-Overall, Advertised Vs Actual Product. The return rate is 1.3%.
When does demand for size 5 girls underwear peak?
Demand peaks in Jul–Aug; the busiest month runs 2.5× the quietest.
What does it cost to enter the size 5 girls underwear niche?
Listings span $9.30–$26.48; the average listing price is $15.03 (sweet spot $15–$100). The average incumbent carries 10,462 reviews — the moat a new listing must climb.