---
title: "Teen Girl One Piece Swimsuit — $23K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/teen-girl-one-piece-swimsuit"
last_updated: "2026-08-10T00:45:40.585Z"
locale: en
meta:
description: "Niche score 58/100 · $23K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 58/100 · $23K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Teen Girl One Piece Swimsuit — $23K/yr Amazon US Niche (2026) - Flapen"
---
# **teen girl one piece swimsuit**
**Worth a look**
Shows a fragmented shelf (top 5 take 15% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 6Growth 95Conversion 6Competition 96Returns 2Price range 87Avg price 95Brand share 96Review moat 77Quality gap 55
**Competition**
**Incredible****15%**
top-5 click share — an open shelf
**Brand share**
**Incredible****32%**
top-5 brand share — no brand owns this niche
**Growth**
**Incredible****+126.2%**
90-day search growth — must beat 0% to launch
**Avg price**
**Incredible****$24.85**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$11.87–$43.48**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Great****463.48**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$23K**
$23K/yr · 200K searches
**Conversion**
**Bad****0.5%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Bad****11.4%**
return rate — above 5% kills the launch gate
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, teen girl one piece swimsuit is a $23K/yr Amazon United States market (200K searches/yr). The top 5 brands hold 32% of demand. Demand peaks in May–Jun–Jul. Verdict: Worth a look — 58/100.
Data updated Jul 14, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **teen girl one piece swimsuit market data**
- **Units sold / yr**
- **750–1K**
- avg 0–100/product
- **Revenue / yr**
- **$19K–$25K**
- units × avg price
- **Conversion rate**
- **0.5%**
- **Avg BSR**
- **#151**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **97%**
- **Out of stock**
- **0.9%**
- **Avg brand age**
- **30 months**
- **Avg seller age**
- **157 days**
## **Competition & brand share**
Clicks spread well past the top 5 (15% combined) — an open shelf where new products get seen.
**Brands**
**70 **▲rising
**Sellers**
**76**
**Top-5 brand share**
**32%**
Top 20: 72%
**Top-5 click share**
**15%**
Top 20: 40%
**Open market**
**64%**
- TyeSmo14% - Cuddomper5% - BAVADER5% - Idgreatim4% - Jolefille4% - CRISONE4%
## **Demand & seasonality**
Weekly Amazon search volume, last 55 weeks — +126.2% search growth over the last 90 days.
12K8KBlack Friday '25Spike '26 seasonJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: May, Jun, Jul · busiest ÷ quietest = 13.4×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/teen-girl-one-piece-swimsuit/trend)
## **Top teen girl one piece swimsuit search terms**
- **teen girl one piece swimsuit**25K/yr+149.9%0.4% conv. - **juniors one piece swimsuit**24K/yr+80.8%0.2% conv. - **one piece swimsuit for teens**20K/yr+130.2%0.3% conv. - **one piece teen swimsuit**15K/yr+175.8%0.5% conv. - **teen one piece swimsuits**12K/yr+355.1%0.4% conv. - **one piece swimsuits for teens**13K/yr+177.8%0.1% conv. - **girls high waisted swimsuit**19K/yr+11.8%0.1% conv. - **teen girl swimsuit one piece**14K/yr+107.2%0.3% conv. - **1 piece bathing suits for teens**11K/yr+247.3%0.2% conv. - **teens one piece swimsuits**11K/yr+180.8%0.3% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/teen-girl-one-piece-swimsuit/search-terms)
## **Top teen girl one piece swimsuit 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%1%$2342%$4673%$7014%$935101001K10K Reviews — right = deep review moatMarket 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.
### **Top sellers**
by 90-day click share
[1**Idgreatim Teen Athletic One Piece Swimsuit Size 13 14 Sport Quick Dry Racerback Bathing Suit Black Wide Straps Swimwear with Pads**Idgreatim**$19.50**4.6★69 rev](https://www.amazon.com/dp/B0G493BSGM) [2**TyeSmo Teen Swimsuits for Girls 12-14 Teen Bathing Suits for Girls 12-14 One Piece Solid Color Girl Bathing Suits Size 12 14 Adjustable Straps Padded Swimwear**TyeSmo**$34.42**4.5★91 rev](https://www.amazon.com/dp/B0DTTW5F4J) [3**TyeSmo Girls Swimsuit One Piece Swimsuits for Teen Girls Color Block Strap Teen Swimsuits for Girl 12-14 Drawstring Swimwear Bathing Suit for Teens 12-14 Girl Size 12 Swimsuit with Padded Dark Blue**TyeSmo**$32.56**4.4★192 rev](https://www.amazon.com/dp/B0FR4TV6XQ) [4**Jolefille Womens One Piece Swimsuit Tummy Control Modest Bathing Suit Teen Girls Swim Suit Cute Floral Swimwear**Jolefille**$35.00**4.3★226 rev](https://www.amazon.com/dp/B0DLZC271J) [5**YOURUIKEY Girls Swimsuits One Piece Ruched Bathing Suit Halterneck Straps and Removable Bra Swimwear for Teen 13-14Y Blue**YOURUIKEY**$18.83**4.5★43 rev](https://www.amazon.com/dp/B0FZVYCDH8)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Arssm Girls Swimsuit Teen Girl One Piece Swimsuit Ruched Bathing Suit Adjustable Straps Padded Swimwear 9-16Y(Blue-11-12Y)**Arssm**$18.93**45 rev6mo ago](https://www.amazon.com/dp/B0GF864B1T) [**XiaoMoSha Girls One Piece Swimsuits Teen Bathing Suit Quick Dry Summer Beach Padded Swimwear Adjustable Straps Color Contrast Trim Beachwear for Tween Girls Size 11 12 Orange Flowers**XiaoMoSha**$19.84**71 rev6mo ago](https://www.amazon.com/dp/B0G6478H86) [**Idgreatim Teen Athletic One Piece Swimsuit Size 13 14 Sport Quick Dry Racerback Bathing Suit Black Wide Straps Swimwear with Pads**Idgreatim**$19.50**69 rev7mo ago](https://www.amazon.com/dp/B0G493BSGM) [**Girls Swimsuit Criss Cross Ruched One Piece Bathing Suit with Solid Color Cover Up Skirt Adjustable Straps Swimwear 13-14Y**Sewetier**$19.82**84 rev8mo ago](https://www.amazon.com/dp/B0G1BBZMFH) [**YOURUIKEY Girls Swimsuits One Piece Ruched Bathing Suit Halterneck Straps and Removable Bra Swimwear for Teen 13-14Y Blue**YOURUIKEY**$18.83**43 rev8mo ago](https://www.amazon.com/dp/B0FZVYCDH8)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**FJLSJSW Teens Girls One Piece Swimsuit Bathing Suit for Girls Adjustable Strap Summer Beach Swimwear Pool Activities 15Y**FJLSJSW**$13.61**4.4★**▲ 16%**](https://www.amazon.com/dp/B0FV8GY96Z) [**Arssm Girls Swimsuit Teen Girl One Piece Swimsuit Ruched Bathing Suit Adjustable Straps Padded Swimwear 9-16Y(Blue-11-12Y)**Arssm**$18.93**4.6★**▲ 14%**](https://www.amazon.com/dp/B0GF864B1T) [**Idgreatim Teen Athletic One Piece Swimsuit Size 13 14 Sport Quick Dry Racerback Bathing Suit Black Wide Straps Swimwear with Pads**Idgreatim**$19.50**4.6★**▲ 14%**](https://www.amazon.com/dp/B0G493BSGM) [**BAVADER Girls Swimsuit One Piece Girls Teen Swimsuits for Girls 12-14 Solid Modest Teen Bathing Suits for Girl 12-14 Square Neck Adjustable Straps Ruched Full Coverage Padded Swimwear Blue**BAVADER**$30.84**4.4★**▲ 13%**](https://www.amazon.com/dp/B0FWQKK9MC) [**BAVADER Girls Swimsuit One Piece Girls Teen Swimsuits for Girls 14-16 Solid Modest Girl Bathing Suits Size 14-16 Square Neck Adjustable Straps Ruched Full Coverage Padded Swimwear Blue**BAVADER**$30.18**4.4★**▲ 10%**](https://www.amazon.com/dp/B0FWQR964K)
**~~View all trending →~~**
## **What buyers say about teen girl one piece swimsuit**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**36%
*“Amazing fit”*
**Comfort-Overall**11%
*“Very comfortable”*
**Quality-Overall**8%
*“Looks well made”*
**Color**5%
*“vibrant colors”*
**Material Quality**5%
*“Great, comfortable material feel good”*
**Value For Money**4%
*“Worth It”*
**Shape/Style**4%
*“The Style is all her”*
**Strap/String Quality**3%
*“Easy to adjust straps”*
**Advertised Vs Actual Product**3%
*“Exactly as advertised”*
**Durability**1%
*“It did not break at all”*
### **What buyers complain about **
**Size-Overall**27%
*“Runs Large”*
**Color**7%
*“Color faded”*
**Material Quality**5%
*“Terrible material for a swimsuit”*
**Strap/String Quality**5%
*“Poorly made strap”*
**Transparency**3%
*“See through”*
**Stretchability/Expandability/Elasticity**3%
*“Stretched out quickly especially at legs”*
**Quality-Overall**2%
*“Not as good quality as it looks in the photos”*
**Durability**2%
*“Did not wear for long”*
**Advertised Vs Actual Product**2%
*“Unlike the photos there is some gapping”*
**Thickness**2%
*“The fabric is noticeably thicker”*
### **Top return reasons **
**Size-Overall**63%
**Length**8%
**Chest Fit**8%
**Waist Fit**4%
**Hip Fit**3%
**Shape/Style**3%
**Advertised Vs Actual Product**2%
**Color**2%
**Material Quality**1%
**Strap/String Quality**1%
## **Common questions**
- **Is teen girl one piece swimsuit profitable to sell on Amazon United States?**
- The niche generates $23K/yr across 190 tracked products. 27 of 112 products launched in the last 360 days are still selling. 90-day search growth is +126.2%. Flapen's verdict: Worth a look (58/100).
- **How competitive is the teen girl one piece swimsuit niche?**
- 70 brands and 76 sellers compete. The top 5 products take 15% of clicks and top 5 brands hold 32% of demand.
- **What do buyers complain about in teen girl one piece swimsuit?**
- Top complaints mined from reviews: Size-Overall, Color, Material Quality. The return rate is 11.4% — above our launch gate.
- **When does demand for teen girl one piece swimsuit peak?**
- Demand peaks in May–Jun–Jul; the busiest month runs 13.4× the quietest.
- **What does it cost to enter the teen girl one piece swimsuit niche?**
- Listings span $11.87–$43.48; the average listing price is $24.85 (sweet spot $15–$100). The average incumbent carries 463 reviews — the moat a new listing must climb.
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