Is just my size panties profitable to sell on Amazon United States?

The niche generates $183K/yr across 150 tracked products. 6 of 10 products launched in the last 360 days are still selling. 90-day search growth is +3.5%. Flapen's verdict: Worth a look (50/100).

How competitive is the just my size panties niche?

28 brands and 76 sellers compete. The top 5 products take 17% of clicks and top 5 brands hold 80% of demand.

What do buyers complain about in just my size panties?

Top complaints mined from reviews: Size-Overall, Quality-Overall, Stretchability/Expandability/Elasticity. The return rate is 2.9%.

When does demand for just my size panties peak?

Demand is steady year-round — the busiest month runs 1.2× the quietest.

What does it cost to enter the just my size panties niche?

Listings span $8.72–$39.43; the average listing price is $20.65 (sweet spot $15–$100). The average incumbent carries 17,557 reviews — the moat a new listing must climb.

Just My Size Panties

Worth a look

Shows a fragmented shelf (top 5 take 17% of clicks), but weak search conversion (1.3%) keeps it on the watch list.

Competition

Incredible17%

top-5 click share — an open shelf

Avg price

Great$20.65

avg listing price — sweet spot $15–$100

Price range

Great$8.72–$39.43

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

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Returns

Good2.9%

return rate — above 5% kills the launch gate

Brand share

Okay80%

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

Market size

Okay$183K

$183K/yr · 662K searches

Growth

Okay+3.5%

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

Review moat

Bad17,557.34

avg incumbent reviews — the moat a new listing must climb

Conversion

Bad1.3%

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

Is just my size panties profitable on Amazon?

According to Flapen's Amazon United States niche tracking, just my size panties is a $183K/yr Amazon United States market (662K searches/yr). The top 5 brands hold 80% of demand. Verdict: Worth a look — 50/100.

Data updated Jul 13, 2026 · scored weekly · How we score niches

just my size panties market size & sales

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

Units sold / yr: 10K–13K; avg 100–250/product
Revenue / yr: $207K–$258K; units × avg price
Conversion rate: 1.3%
Avg BSR: #1,757
Page quality: 0%
Prime: 89%
Sponsored: 57%
Out of stock: 1.7%
Avg brand age: 50 months
Avg seller age: 152 days

Competition: brands, sellers & click share

Clicks spread well past the top 5 (17% combined) — an open shelf where new products get seen.

Brands

28 rising

Sellers

Top-5 brand share

80%

Top 20: 98%

Top-5 click share

17%

Top 20: 42%

Open market

16%

Fruit of the Loom35%
Hanes24%
Molasus11%
JUST MY SIZE6%
INNERSY5%
Vevmon4%
Open — no brand owns it (22 brands, 16%)

just my size panties demand & seasonality

Weekly Amazon search volume, last 104 weeks — +3.5% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.2×

Open Trend

Top just my size panties search terms shoppers use

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

just my size underwear205K/yr +5.0%1.1% conv.
fit for me underwear for women plus size155K/yr +6.8%1.3% conv.
fit for me fruit of the loom40K/yr +5.1%0.9% conv.
jms underwear for women plus size37K/yr -4.2%0.7% conv.
fit for me plus size underwear25K/yr +11.4%0.8% conv.
fit for me underwear29K/yr +1.9%0.5% conv.
fruit of the loom fit for me womens underwear23K/yr +7.0%1.0% conv.
hanes just my size underwear for women20K/yr +6.1%1.5% conv.
just my size panties19K/yr -17.9%0.9% conv.
just my size plus size underwear15K/yr -7.8%0.5% conv.

All search terms

Top just my size panties 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

Molasus Womens Soft Cotton Underwear Briefs High Waisted Postpartum Panties Ladies Full Coverage Plus Size Underpants Pack of 5 Large

Molasus$23.844.6★45,259 rev

Vevmon Cotton Underwear for Women High Waisted Full Coverage Briefs Soft Ladies Panties 5 Pack (US Alpha Medium Regular Regular A-5 Pack 5 Colors)

Vevmon$14.764.3★4,297 rev

Fruit Of The Loom Womens Fit For Me Plus Size Underwear Designed To Your Curves Brief - Breathable Cotton Mesh - Assorted 13 Plus

Fruit of the Loom$18.564.6★41,501 rev

Fruit of the Loom womens Tag Free Cotton Brief Panties (Regular & Plus Size) Underwear Plus Size Brief - 6 Pack Comfort Covered Waistband 12 US

Fruit of the Loom$15.074.4★10,070 rev

JUST MY SIZE Womens Plus Size Cool Comfort Cotton High Brief 6-Pack Assorted 11 (16156C)

Hanes$13.694.4★11,857 rev

Newest

by launch date

Tichati 6 Pack Womens Underwear High Waisted Seamless Breathable Full Coverage Briefs No Show Ladies Panties (Regular & Plus Size)

Tichati$18.08501 rev

9mo ago

Vevmon Cotton Underwear for Women High Waisted Full Coverage Briefs Soft Ladies Panties 5 Pack (US Alpha Medium Regular Regular A-5 Pack 5 Colors)

Vevmon$14.764,297 rev

1y ago

Cuweni Womens Underwear Seamless High Waisted Briefs Silky Stretch No Show Breathable Full Coverage Ladies Panties 6 Pack (US Alpha Large Regular Regular 6 color packs)

Cuweni$17.583,826 rev

1y ago

Hanes Womens Brief Underwear Stretch Brief Panties for Women Tag-Free Underwear 5-Pack

Hanes$12.762,328 rev

2y ago

Hanes Womens Mesh Brief Underwear Breathable Panties for Women No-Show Underwear 5-Pack

Hanes$12.442,358 rev

2y ago

What reviews say buyers love and hate about just my size panties

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

What buyers love

Comfort-Overall27%

“more comfortable feel”

Size-Overall22%

“Fits as expected”

Soft Feel7%

“They are smooth”

Quality-Overall7%

“Good quality, size up”

Value For Money4%

“They are affordable”

Material Quality4%

“Excellent material”

Color3%

“Color is vibrant”

Breathability2%

“Comfortable breathable”

Stretchability/Expandability/Elasticity2%

“Stretches to fit”

Advertised Vs Actual Product2%

“Fit as described”

What buyers complain about

Size-Overall26%

“Absolutely HUGE”

Quality-Overall10%

“Extremely low quality”

Stretchability/Expandability/Elasticity7%

“No elasticity”

Material Quality5%

“Cheap Material”

Thickness4%

“Theyre very rough thick stiff fabric”

Comfort-Overall4%

“Not as comfortable as I was hoping”

Durability3%

“Falling apart”

Stitch/Finish/Polish3%

“they're coming apart at the seams”

Waist Fit2%

“Waist runs very small”

Thigh Fit2%

“run small tight on the thigh”

Top return reasons

Size-Overall54%

Waist Fit10%

Material Quality8%

Thigh Fit4%

Advertised Vs Actual Product4%

Thin2%

Length2%

Shape/Style2%

Comfort-Overall1%

Waist High1%

Common just my size panties questions

Is just my size panties profitable to sell on Amazon United States?: The niche generates $183K/yr across 150 tracked products. 6 of 10 products launched in the last 360 days are still selling. 90-day search growth is +3.5%. Flapen's verdict: Worth a look (50/100).
How competitive is the just my size panties niche?: 28 brands and 76 sellers compete. The top 5 products take 17% of clicks and top 5 brands hold 80% of demand.
What do buyers complain about in just my size panties?: Top complaints mined from reviews: Size-Overall, Quality-Overall, Stretchability/Expandability/Elasticity. The return rate is 2.9%.
When does demand for just my size panties peak?: Demand is steady year-round — the busiest month runs 1.2× the quietest.
What does it cost to enter the just my size panties niche?: Listings span $8.72–$39.43; the average listing price is $20.65 (sweet spot $15–$100). The average incumbent carries 17,557 reviews — the moat a new listing must climb.