Is custom thong profitable to sell on Amazon United States?

The niche generates $190K/yr across 16 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -42.1%. Flapen's verdict: Skip it (41/100).

How competitive is the custom thong niche?

9 brands and 11 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 82% of demand.

What do buyers complain about in custom thong?

Top complaints mined from reviews: Size-Overall, Durability, Color. The return rate is 0.4%.

When does demand for custom thong peak?

Demand peaks in Jan–Feb; the busiest month runs 3.1× the quietest.

What does it cost to enter the custom thong niche?

Listings span $7.11–$18.70; the average listing price is $11.78 (sweet spot $15–$100). The average incumbent carries 260 reviews — the moat a new listing must climb.

custom thong

Skip it

Soft demand (-42.1% this quarter) — this niche doesn't clear our bar today.

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Review moat

Great260.31

avg incumbent reviews — the moat a new listing must climb

Avg price

Okay$11.78

avg listing price — sweet spot $15–$100

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Okay$190K

$190K/yr · 759K searches

Brand share

Okay82%

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

Competition

Okay64%

top-5 click share — leaders hold, buyers still browse

Price range

Okay$7.11–$18.70

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

Conversion

Okay2.1%

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

Growth

Bad-42.1%

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

Signals Low Review Barrier

According to Flapen's Amazon United States niche tracking, custom thong is a $190K/yr Amazon United States market (759K searches/yr). The top 5 brands hold 82% of demand. Demand peaks in Jan–Feb. Verdict: Skip it — 41/100.

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

custom thong market data

Units sold / yr: 5K–6K; avg 100–250/product
Revenue / yr: $59K–$71K; units × avg price
Conversion rate: 2.1%
Avg BSR: #5,073
Page quality: 0%
Prime: 75%
Sponsored: 56%
Out of stock: 0.7%
Avg brand age: 35 months
Avg seller age: 166 days

Competition & brand share

The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.

Brands

9 falling

Sellers

Top-5 brand share

82%

Top 20: 100%

Top-5 click share

64%

Top 20: 100%

Open market

11%

ToKuaigo35%
ZSXZCGSB16%
Eoribag15%
AICHENG8%
Generic8%
loumssiy7%
Open — no brand owns it (3 brands, 11%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -42.1% search growth over the last 90 days.

Peak months: Jan, Feb · busiest ÷ quietest = 3.1×

Open Trend

Top custom thong search terms

custom thong137K/yr -46.5%0.8% conv.
custom underwear for women68K/yr -36.5%0.5% conv.
custom panties50K/yr -29.1%0.5% conv.
custom thongs with name on it58K/yr -43.9%1.1% conv.
thong with name on it42K/yr -49.7%1.2% conv.
name thong42K/yr -59.6%0.9% conv.
custom underwear39K/yr -41.9%0.2% conv.
custom name thong31K/yr -44.4%1.0% conv.
name thongs for women33K/yr -36.9%0.9% conv.
personalized thong37K/yr -45.4%1.0% conv.

All search terms

Top custom thong 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 16 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

ToKuaigo Personalized Thongs with Name - Custom Thong with Name Bra Set Personalized Gifts Custom Funny Name Underwear

ToKuaigo$13.124.6★70 rev

ZSXZCGSB Sexy Underwear for Women Lace Thongs with Sparkling Letter Charms Fun and Flirty Panties for Women Sexy

ZSXZCGSB$8.134.2★74 rev

Eoribag Womens Personalized Lace Thongs with Funny Rhinestone Letters Custom Name Underwear Panties for CouplesChristmas & Valentines Day GiftBlack

Eoribag$8.184.6★539 rev

AICHENG 2-Pack Personalized Thongs with Names Custom Name Thong Diy Gold Rhinestone Shiny Letters Name Customize Your Fashion Logo The Letters Are Hand Sewn Very Strong And Not Easy To Fall Off

AICHENG$17.094.6★805 rev

2-Pack Personalized Thongs with Names Custom Lace Underwear Panties with Rhinestone Shiny Letter Name for Women & Girlfriend Birthday Gift/Valentines Day Gift Black

Generic$18.704.4★193 rev

Newest

by launch date

ToKuaigo Personalized Thongs with Name - Custom Thong with Name Bra Set Personalized Gifts Custom Funny Name Underwear

ToKuaigo$13.0770 rev

8mo ago

ZSXZCGSB Sexy Underwear for Women Lace Thongs with Sparkling Letter Charms Fun and Flirty Panties for Women Sexy

ZSXZCGSB$8.1374 rev

8mo ago

ZSXZCGSB Sexy Underwear for Women Lace Thongs with Sparkling Letter Charms Fun and Flirty Panties for Women Sexy

ZSXZCGSB$8.0774 rev

8mo ago

ZSXZCGSB Sexy Underwear for Women Lace Thongs with Sparkling Letter Charms Fun and Flirty Panties for Women Sexy

ZSXZCGSB$8.0874 rev

8mo ago

2-Pack Personalized Thongs with Names Custom Lace Underwear Panties with Rhinestone Shiny Letter Name for Women & Girlfriend Birthday Gift/Valentines Day Gift Black

Generic$18.70193 rev

1y ago

What buyers say about custom thong

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

What buyers love

Quality-Overall27%

“Good quality”

Size-Overall18%

“Fit great”

Comfort-Overall11%

“Surprisingly comfortable”

Gifting Purpose7%

“Good gift”

Advertised Vs Actual Product7%

“Description”

Material Quality7%

“good material not cheaply made”

Value For Money4%

“Good value”

Washability3%

“Still look brand after several washes”

Shape/Style3%

“Sexy thongs”

Stretchability/Expandability/Elasticity2%

“Great thongs very stretchy and comfortable”

What buyers complain about

Size-Overall30%

“it did not fit me properly at all”

Durability15%

“literally ripped the first time i wore them”

Color9%

“Wrong color received”

Quality-Overall5%

“is kinda cheaply made”

Machine Wash Suitability4%

“you gotta wash them by hand because the names will come off”

Smell4%

“They arrived with a strong chemical smelling”

Material Quality3%

“I thought it would be the cheap lace material”

Stitch/Finish/Polish2%

“Stitching is flaky”

Adhesion/Stickiness2%

“letters are hot glued on you can literally see the glue”

Stretchability/Expandability/Elasticity2%

“not soft at all they do have stretchiness to them”

Top return reasons

Size-Overall56%

Waist Fit12%

Defective Material/Parts6%

Chain/Key Quality4%

Quality-Overall2%

Shape/Style2%

Chest Fit2%

Material Quality2%

Stitch/Finish/Polish1%

Strap/String Quality1%

Common questions

Is custom thong profitable to sell on Amazon United States?: The niche generates $190K/yr across 16 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -42.1%. Flapen's verdict: Skip it (41/100).
How competitive is the custom thong niche?: 9 brands and 11 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 82% of demand.
What do buyers complain about in custom thong?: Top complaints mined from reviews: Size-Overall, Durability, Color. The return rate is 0.4%.
When does demand for custom thong peak?: Demand peaks in Jan–Feb; the busiest month runs 3.1× the quietest.
What does it cost to enter the custom thong niche?: Listings span $7.11–$18.70; the average listing price is $11.78 (sweet spot $15–$100). The average incumbent carries 260 reviews — the moat a new listing must climb.

custom thong

custom thong market data

Competition & brand share

Demand & seasonality

Top custom thong search terms

Top custom thong products on Amazon

Top sellers

Newest

Trending

What buyers say about custom thong

What buyers love

What buyers complain about

Top return reasons

Common questions

Related niches in Clothing, Shoes & Jewelry