---
title: "Plastic Underwear for Toddlers — $91K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/baby-products/plastic-underwear-for-toddlers"
last_updated: "2026-08-09T16:46:00.394Z"
locale: en
meta:
description: "Niche score 47/100 · $91K/yr market · 222K searches/yr · $17.35 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · $91K/yr market · 222K searches/yr · $17.35 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Plastic Underwear for Toddlers — $91K/yr Amazon US Niche (2026) - Flapen"
---
# **plastic underwear for toddlers**
**Skip it**
A small market ($91K/yr) — this niche doesn't clear our bar today.
Market size 23Growth 25Conversion 29Competition 67Returns 48Price range 63Avg price 81Brand share 36Review moat 42Quality gap 87
**Quality gap**
**Great****4.1★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Great****$17.35**
avg listing price — sweet spot $15–$100
**Competition**
**Good****45%**
top-5 click share — leaders hold, buyers still browse
**Price range**
**Good****$5.42–$31.32**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Okay****3.1%**
return rate — above 5% kills the launch gate
**Review moat**
**Okay****2,274.85**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****83%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Okay****2.4%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Bad****-0.0%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$91K**
$91K/yr · 222K searches
According to Flapen's Amazon United States niche tracking, plastic underwear for toddlers is a $91K/yr Amazon United States market (222K searches/yr). The top 5 brands hold 83% of demand. Verdict: Skip it — 47/100.
Data updated Jul 12, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **plastic underwear for toddlers market data**
- **Units sold / yr**
- **6K–8K**
- avg 100–250/product
- **Revenue / yr**
- **$104K–$139K**
- units × avg price
- **Conversion rate**
- **2.4%**
- **Avg BSR**
- **#138**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **82%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **50 months**
- **Avg seller age**
- **181 days**
## **Competition & brand share**
The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**10 **▲rising
**Sellers**
**17**
**Top-5 brand share**
**83%**
Top 20: 100%
**Top-5 click share**
**45%**
Top 20: 84%
**Open market**
**8%**
- BISENKID27% - Gerber22% - EZ Moms15% - Joyo roy10% - dappi9% - Funtery8% - Open — no brand owns it (4 brands, 8%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -0.0% search growth over the last 90 days.
6K4KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/baby-products/plastic-underwear-for-toddlers/trend)
## **Top plastic underwear for toddlers search terms**
- **plastic underwear for potty training**37K/yr-11.2%2.9% conv. - **rubber pants for potty training**26K/yr-2.6%2.4% conv. - **plastic training pants for toddlers**23K/yr-23.0%3.4% conv. - **plastic diaper covers**9K/yr+84.8%1.6% conv. - **rubber training pants for toddlers**13K/yr-7.0%2.4% conv. - **rubber pants for babies**9K/yr+54.6%1.2% conv. - **rubber underwear for potty training**13K/yr-9.0%2.1% conv. - **plastic diaper covers for toddlers**11K/yr-7.2%2.6% conv. - **plastic pants for potty training**12K/yr-19.6%2.9% conv. - **plastic swim diaper cover**6K/yr+171.3%2.3% conv. [**All search terms **](https://flapen.com/research/us/baby-products/plastic-underwear-for-toddlers/search-terms)
## **Top plastic underwear for toddlers 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%4%$4K8%$7K12%$11K16%$14K101001K10K100K 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**Gerber Unisex Baby 8 Pack Waterproof Diaper Cover and Toddler Training Underwear White 3T US**Gerber**$15.78**4.0★663 rev](https://www.amazon.com/dp/B0BX1S2LQP) [2**BISENKID Rubber Underpants for Potty Training Good Elastic Plastic Diaper Covers for Plastic Pants & Training Underwear for Boy 2t**BISENKID**$18.07**4.2★1,057 rev](https://www.amazon.com/dp/B098LCNHGR) [3**Funtery 12 Packs Waterproof Plastic Pants for Toddlers Reusable Diaper Covers Unisex Baby Potty Training Underwear Covers(3T) White**Funtery**$19.39**4.0★517 rev](https://www.amazon.com/dp/B0C4HGHV1S) [4**Gerber Baby 2-Pack Waterproof Pant white 2T**Gerber**$5.42**4.2★3,443 rev](https://www.amazon.com/dp/B00742VTDY) [5**BISENKID Waterproof Diaper Cover for Rubber Pants for Toddlers Good Elastic Rubber Swim Diaper Cover for Potty Training Underwear Boy 3t**BISENKID**$18.09**4.2★1,057 rev](https://www.amazon.com/dp/B098LBG25L)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Reusable Waterproof 100% Nylon Taffeta Diaper Pants for Potty Training & Swimming Leak-Proof & Rip-Proof Medium (Fits 20-25 lbs) 4 Counts**dappi**$6.69**13 rev1y ago](https://www.amazon.com/dp/B0DXFY1VJR) [**Gerber Unisex Baby 8 Pack Waterproof Diaper Cover and Toddler Training Underwear White 3T US**Gerber**$15.78**663 rev3y ago](https://www.amazon.com/dp/B0BX1S2LQP) [**EZ Moms 10 Pack Rubber Training Pants for Toddlers Reusable Plastic Pants Girls Plastic Underwear Covers for Potty Training Waterproof Diaper Cover Breathable and Soft Baby Diaper Covers for Girls 3T**EZ Moms**$27.47**374 rev3y ago](https://www.amazon.com/dp/B0C6F25Z67) [**EZ Moms 10 Pack Boys Diaper Covers Plastic Training Pants for Toddlers Reusable Plastic Underwear Covers for Potty Training Breathable Rubber Pants for Babies Soft Waterproof Diaper Cover for Boys 3T**EZ Moms**$27.52**374 rev3y ago](https://www.amazon.com/dp/B0C6F16HQL) [**EZ Moms 10 Pack Plastic Underwear Covers For Potty Training Girls Reusable Plastic Diaper Covers For Toddlers Soft Rubber Underwear For Toddlers Waterproof Plastic Diaper Covers Girls 2T Plastic Pants**EZ Moms**$27.43**374 rev3y ago](https://www.amazon.com/dp/B0C6DW9NH6)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**BISENKID Waterproof Swim Diaper Cover for Plastic Training Pants for Toddlers Good Elastic Rubber Swim Diaper Cover for Plastic Training Pants Boy 4t**BISENKID**$17.98**4.2★**▲ 114%**](https://www.amazon.com/dp/B098LBTHPT) [**BISENKID Waterproof Diaper Cover for Rubber Pants for Toddlers Good Elastic Rubber Swim Diaper Cover for Potty Training Underwear Boy 3t**BISENKID**$18.09**4.2★**▲ 112%**](https://www.amazon.com/dp/B098LBG25L) [**MooMoo Baby 8 Packs Potty Training Pants Cotton Absorbent Training Underwear for Toddler Baby Boy 3T**MooMoo Baby**$31.32**4.5★**▲ 101%**](https://www.amazon.com/dp/B08W3B956F) [**Joyo roy 4Pcs Plastic Underwear for Potty Training Swim Diaper Covers for Toddlers Cloth Diaper Cover for Boys Rubber Pants Waterproof Plastic Underwear Rubber Training Pants for Toddlers 3T-4T**Joyo roy**$16.56**4.0★**▲ 84%**](https://www.amazon.com/dp/B08CV9KRCZ) [**Joyo roy 4Pcs Plastic Underwear for Potty Training Swim Diaper Covers for Toddlers White Diaper Cover Toddler Clothing Covers Training Underwear for Boys 3T Girls Rubber Pants for Toddlers**Joyo roy**$16.48**4.0★**▲ 62%**](https://www.amazon.com/dp/B08CRH1HN6)
**~~View all trending →~~**
## **What buyers say about plastic underwear for toddlers**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**21%
*“Fit well”*
**Quality-Overall**15%
*“Very well made”*
**Leak-Proof**6%
*“Liquid doesn't leak through”*
**Comfort-Overall**4%
*“Theyre comfortable”*
**Advertised Vs Actual Product**4%
*“They are just exactly as pictured”*
**Color**4%
*“Cute colors”*
**Exercise/Sports Suitability**4%
*“Great training pants”*
**Durability**3%
*“very durable”*
**Value For Money**3%
*“Definitely worth the money”*
**Soft Feel**3%
*“Soft,and comfortable”*
### **What buyers complain about **
**Water Resistance**12%
*“Every morning my one year is soaked through everything”*
**Leak-Proof**11%
*“Not leakproof”*
**Functionality-Overall**10%
*“not functional”*
**Size-Overall**7%
*“These are HUGE”*
**Material Quality**7%
*“its just fabric”*
**Absorbency**7%
*“Not absorbent”*
**Thickness**5%
*“Thick”*
**Durability**3%
*“broke after 1st use”*
**Strength**3%
*“Doesnt hold”*
**Stretchability/Expandability/Elasticity**3%
*“the elastic is not tight enough on the leg holes to serve any function”*
### **Top return reasons **
**Size-Overall**56%
**Material Quality**8%
**Thigh Fit**6%
**Advertised Vs Actual Product**5%
**Waist Fit**3%
**Water Resistance**3%
**Leak-Proof**3%
**Functionality-Overall**2%
**Absorbency**2%
**Thin**1%
## **Common questions**
- **Is plastic underwear for toddlers profitable to sell on Amazon United States?**
- The niche generates $91K/yr across 34 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -0.0%. Flapen's verdict: Skip it (47/100).
- **How competitive is the plastic underwear for toddlers niche?**
- 10 brands and 17 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 83% of demand.
- **What do buyers complain about in plastic underwear for toddlers?**
- Top complaints mined from reviews: Water Resistance, Leak-Proof, Functionality-Overall. The return rate is 3.1%.
- **When does demand for plastic underwear for toddlers peak?**
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- **What does it cost to enter the plastic underwear for toddlers niche?**
- Listings span $5.42–$31.32; the average listing price is $17.35 (sweet spot $15–$100). The average incumbent carries 2,275 reviews — the moat a new listing must climb.
## **Related niches in Baby Products**
- 65 [**baby car seat fan**](https://flapen.com/research/us/baby-products/baby-car-seat-fan)$31K/yr+151.9%**Worth a look**- 65 [**tummy time toys**](https://flapen.com/research/us/baby-products/tummy-time-toys)$11.8M/yr-9.5%**Worth a look**- 65 [**sunscreen brush**](https://flapen.com/research/us/baby-products/sunscreen-brush)$615K/yr+314.7%**Worth a look**- 65 [**toddler step stool**](https://flapen.com/research/us/baby-products/toddler-step-stool)$4.1M/yr-7.9%**Worth a look**- 65 [**training diapers 2t-3t**](https://flapen.com/research/us/baby-products/training-diapers-2t-3t)$6.1M/yr+8.7%**Launch it**- 65 [**water baby carrier**](https://flapen.com/research/us/baby-products/water-baby-carrier)$431K/yr+176.5%**Worth a look**[**All Baby Products niches **](https://flapen.com/research/us/baby-products)