---
title: "Custom Thong — $190K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/custom-thong"
last_updated: "2026-08-11T15:20:52.624Z"
locale: en
meta:
description: "Niche score 41/100 · $190K/yr market · 759K searches/yr · $11.78 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 41/100 · $190K/yr market · 759K searches/yr · $11.78 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Custom Thong — $190K/yr Amazon US Niche (2026) - Flapen"
---
# **custom thong**
**Skip it**
Soft demand (-42.1% this quarter) — this niche doesn't clear our bar today.
Market size 38Growth 4Conversion 27Competition 35Returns 98Price range 32Avg price 48Brand share 38Review moat 87Quality gap 45
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Review moat**
**Great****260.31**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Okay****$11.78**
avg listing price — sweet spot $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$190K**
$190K/yr · 759K searches
**Brand share**
**Okay****82%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****64%**
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**
**Okay****2.1%**
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**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
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 ~~](https://flapen.com/research/methodology)
## **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**
**11**
**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.
45K35KHoliday '24Spike '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Feb · busiest ÷ quietest = 3.1×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/custom-thong/trend)
## **Top custom thong search terms**
- **custom thong**137K/yr-46.5%0.8% conv. - **custom underwear for women**68K/yr-36.5%0.5% conv. - **custom panties**50K/yr-29.1%0.5% conv. - **custom thongs with name on it**58K/yr-43.9%1.1% conv. - **thong with name on it**42K/yr-49.7%1.2% conv. - **name thong**42K/yr-59.6%0.9% conv. - **custom underwear**39K/yr-41.9%0.2% conv. - **custom name thong**31K/yr-44.4%1.0% conv. - **name thongs for women**33K/yr-36.9%0.9% conv. - **personalized thong**37K/yr-45.4%1.0% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/custom-thong/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.
0%10%$19K20%$38K30%$57K40%$76K101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**ToKuaigo Personalized Thongs with Name - Custom Thong with Name Bra Set Personalized Gifts Custom Funny Name Underwear**ToKuaigo**$13.12**4.6★70 rev](https://www.amazon.com/dp/B0DW9JLRB6) [2**ZSXZCGSB Sexy Underwear for Women Lace Thongs with Sparkling Letter Charms Fun and Flirty Panties for Women Sexy**ZSXZCGSB**$8.13**4.2★74 rev](https://www.amazon.com/dp/B0FX33HVC4) [3**Eoribag Womens Personalized Lace Thongs with Funny Rhinestone Letters Custom Name Underwear Panties for CouplesChristmas & Valentines Day GiftBlack**Eoribag**$8.18**4.6★539 rev](https://www.amazon.com/dp/B0DHCVM73P) [4**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**$17.09**4.6★805 rev](https://www.amazon.com/dp/B0CT8ZWDZX) [5**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**$18.70**4.4★193 rev](https://www.amazon.com/dp/B0F9S3GVYP)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**ToKuaigo Personalized Thongs with Name - Custom Thong with Name Bra Set Personalized Gifts Custom Funny Name Underwear**ToKuaigo**$13.07**70 rev8mo ago](https://www.amazon.com/dp/B0G1RXCY1F) [**ZSXZCGSB Sexy Underwear for Women Lace Thongs with Sparkling Letter Charms Fun and Flirty Panties for Women Sexy**ZSXZCGSB**$8.13**74 rev8mo ago](https://www.amazon.com/dp/B0FX33HVC4) [**ZSXZCGSB Sexy Underwear for Women Lace Thongs with Sparkling Letter Charms Fun and Flirty Panties for Women Sexy**ZSXZCGSB**$8.07**74 rev8mo ago](https://www.amazon.com/dp/B0FX33C6RT) [**ZSXZCGSB Sexy Underwear for Women Lace Thongs with Sparkling Letter Charms Fun and Flirty Panties for Women Sexy**ZSXZCGSB**$8.08**74 rev8mo ago](https://www.amazon.com/dp/B0FX2ZYNGS) [**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**$18.70**193 rev1y ago](https://www.amazon.com/dp/B0F9S3GVYP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Eoribag Womens Personalized Lace Thongs with Funny Rhinestone Letters Custom Name Underwear Panties for Couples Christmas & Valentines Day Gift Pink**Eoribag**$9.21**4.6★**▲ 100%**](https://www.amazon.com/dp/B0DZD216QB) [**ZSXZCGSB Sexy Underwear for Women Lace Thongs with Sparkling Letter Charms Fun and Flirty Panties for Women Sexy**ZSXZCGSB**$8.07**4.2★**▲ 93%**](https://www.amazon.com/dp/B0FX33C6RT) [**loumssiy Personalized Thongs with Names Bra Set for Women Thong Bra with Shine Metal Letters Personality Sexy Underwear Set (B-1 Medium)**loumssiy**$15.23**4.2★**▲ 63%**](https://www.amazon.com/dp/B0DSKY4CTZ) [**ZSXZCGSB Sexy Underwear for Women Lace Thongs with Sparkling Letter Charms Fun and Flirty Panties for Women Sexy**ZSXZCGSB**$8.13**4.2★**▲ 61%**](https://www.amazon.com/dp/B0FX33HVC4) [**Eoribag Womens Personalized Lace Thongs with Funny Rhinestone Letters Custom Name Underwear Panties for CouplesChristmas & Valentines Day GiftBlack**Eoribag**$9.11**4.6★**▲ 60%**](https://www.amazon.com/dp/B0DHCWTLLF)
**~~View all trending →~~**
## **What buyers say about custom thong**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**27%
*“Good quality”*
**Size-Overall**18%
*“Fit great”*
**Comfort-Overall**11%
*“Surprisingly comfortable”*
**Gifting Purpose**7%
*“Good gift”*
**Advertised Vs Actual Product**7%
*“Description”*
**Material Quality**7%
*“good material not cheaply made”*
**Value For Money**4%
*“Good value”*
**Washability**3%
*“Still look brand after several washes”*
**Shape/Style**3%
*“Sexy thongs”*
**Stretchability/Expandability/Elasticity**2%
*“Great thongs very stretchy and comfortable”*
### **What buyers complain about **
**Size-Overall**30%
*“it did not fit me properly at all”*
**Durability**15%
*“literally ripped the first time i wore them”*
**Color**9%
*“Wrong color received”*
**Quality-Overall**5%
*“is kinda cheaply made”*
**Machine Wash Suitability**4%
*“you gotta wash them by hand because the names will come off”*
**Smell**4%
*“They arrived with a strong chemical smelling”*
**Material Quality**3%
*“I thought it would be the cheap lace material”*
**Stitch/Finish/Polish**2%
*“Stitching is flaky”*
**Adhesion/Stickiness**2%
*“letters are hot glued on you can literally see the glue”*
**Stretchability/Expandability/Elasticity**2%
*“not soft at all they do have stretchiness to them”*
### **Top return reasons **
**Size-Overall**56%
**Waist Fit**12%
**Defective Material/Parts**6%
**Chain/Key Quality**4%
**Quality-Overall**2%
**Shape/Style**2%
**Chest Fit**2%
**Material Quality**2%
**Stitch/Finish/Polish**1%
**Strap/String Quality**1%
## **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.
## **Related niches in Clothing, Shoes & Jewelry**
- 72 [**first communion gifts for boys**](https://flapen.com/research/us/clothing-shoes-jewelry/first-communion-gifts-for-boys)$398K/yr+223.5%**Worth a look**- 72 [**fifa world cup 2026 tshirt**](https://flapen.com/research/us/clothing-shoes-jewelry/fifa-world-cup-2026-tshirt)$177K/yr>1,000%**Worth a look**- 72 [**american flag hat**](https://flapen.com/research/us/clothing-shoes-jewelry/american-flag-hat)$764K/yr+428.8%**Worth a look**- 72 [**white socks men**](https://flapen.com/research/us/clothing-shoes-jewelry/white-socks-men)$3.0M/yr+13.3%**Launch it**- 72 [**american flag overalls**](https://flapen.com/research/us/clothing-shoes-jewelry/american-flag-overalls)$662K/yr>1,000%**Worth a look**- 73 [**white ankle socks for men**](https://flapen.com/research/us/clothing-shoes-jewelry/white-ankle-socks-for-men)$448K/yr+88.3%**Worth a look**[**All Clothing, Shoes & Jewelry niches **](https://flapen.com/research/us/clothing-shoes-jewelry)