---
title: "Thomas the Train Costume — $0/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/thomas-the-train-costume"
last_updated: "2026-08-06T04:38:51.764Z"
locale: en
meta:
description: "Niche score 35/100 · $0/yr market · 49K searches/yr · $30.07 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 35/100 · $0/yr market · 49K searches/yr · $30.07 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Thomas the Train Costume — $0/yr Amazon US Niche (2026) - Flapen"
---
# **thomas the train costume**
**Skip it**
A small market ($0/yr) — this niche doesn't clear our bar today.
Market size 0Growth 26Conversion 0Competition 18Returns 19Price range 89Avg price 95Brand share 44Review moat 84Quality gap 87
**Avg price**
**Incredible****$30.07**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$11.97–$54.01**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.1★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Great****326.2**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****79%**
top-5 brand share — brands hold most of the demand
**Growth**
**Okay****+0.7%**
90-day search growth — must beat 0% to launch
**Returns**
**Bad****6.7%**
return rate — above 5% kills the launch gate
**Competition**
**Bad****79%**
top-5 click share — a locked-up shelf
**Market size**
**Bad****$0**
$0/yr · 49K searches
**Conversion**
**Bad****0.0%**
search→purchase rate — share of searches ending in a sale
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United States niche tracking, thomas the train costume is a $0/yr Amazon United States market (49K searches/yr). The top 5 brands hold 79% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 35/100.
Data updated Jul 10, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **thomas the train costume market data**
- **Units sold / yr**
- **750–1K**
- avg 0–100/product
- **Revenue / yr**
- **$23K–$30K**
- units × avg price
- **Conversion rate**
- **0.0%**
- **Avg BSR**
- **#2,525**
- **Page quality**
- **0%**
- **Prime**
- **70%**
- **Sponsored**
- **40%**
- **Out of stock**
- **19.2%**
- **Avg brand age**
- **48 months**
- **Avg seller age**
- **182 days**
## **Competition & brand share**
The top 5 products capture 79% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**10 **▼falling
**Sellers**
**23**
**Top-5 brand share**
**79%**
Top 20: 100%
**Top-5 click share**
**79%**
Top 20: 100%
**Open market**
**16%**
- UGKIamous49% - California Costumes9% - Seasons8% - KtwHarnu7% - Spirit Halloween6% - Aeromax5% - Open — no brand owns it (4 brands, 16%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +0.7% search growth over the last 90 days.
10K6KSpike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep, Oct · busiest ÷ quietest = 46.3×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/thomas-the-train-costume/trend)
## **Top thomas the train costume search terms**
- **train costume**20K/yr+13.0%0.1% conv. - **train costume adult**6K/yr+14.5%0.0% conv. - **train costume toddler**7K/yr+23.9%0.3% conv. - **train costume kids**10K/yr-42.8%0.6% conv. - **toddler train costume**6K/yr-23.3%0.0% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/thomas-the-train-costume/search-terms)
## **Top thomas the train costume 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%15%$030%$045%$060%$01101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 10 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**UGKIamous 1Pc Railroad Engineer Hat Train Conductor Hat Suitable for Matching Denim Overalls for Men and Women (One Size Blue and White)**UGKIamous**$13.00**4.7★19 rev](https://www.amazon.com/dp/B0FLD23XZM) [2**California Costumes Boys All Aboard! Toddler Costume**California Costumes**$35.83**4.4★256 rev](https://www.amazon.com/dp/B015AF11XE) [3**Seasons Light and Sound Train Costume Size for Kids 3-4 T**Seasons**$33.25**4.2★61 rev](https://www.amazon.com/dp/B0C4SVVTHB) [4**KtwHarnu Toddler Baby Boy Summer Clothes Train Engine Embroidery Short Sleeve T Shirt Plaid Shorts Set Infant 2 Piece Outfit (Blue 18-24 Months)**KtwHarnu**$15.66**4.8★11 rev](https://www.amazon.com/dp/B0F9148H4W) [5**Spirit Halloween Thomas And Friends Toddler Thomas the Train Ride-Along Costume | Officially Licensed | Easy Costume**Spirit Halloween**$44.15**4.7★164 rev](https://www.amazon.com/dp/B09GD5TN6J)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Zcaynger Toddler Baby Boy Girl T Shirt Cotton Summer Train Short Sleeve Crew Neck Undershirts T Shirts Black**Zcaynger**$11.97**17 rev10mo ago](https://www.amazon.com/dp/B0FQ4ZGQLY) [**UGKIamous 1Pc Railroad Engineer Hat Train Conductor Hat Suitable for Matching Denim Overalls for Men and Women (One Size Blue and White)**UGKIamous**$13.00**19 rev11mo ago](https://www.amazon.com/dp/B0FLD23XZM) [**KtwHarnu Toddler Baby Boy Summer Clothes Train Engine Embroidery Short Sleeve T Shirt Plaid Shorts Set Infant 2 Piece Outfit (Blue 18-24 Months)**KtwHarnu**$15.66**11 rev1y ago](https://www.amazon.com/dp/B0F9148H4W) [**InSpirit Designs Thomas & Friends Kids Ride-Along Costume | Officially licensed | Thomas the Train Costume - One Size Fits Most**InSpirit Designs**$39.22**1 rev1y ago](https://www.amazon.com/dp/B0DTV6T89F) [**Seasons Light and Sound Train Costume Size for Kids 3-4 T**Seasons**$33.25**61 rev3y ago](https://www.amazon.com/dp/B0C4SVVTHB)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Zcaynger Toddler Baby Boy Girl T Shirt Cotton Summer Train Short Sleeve Crew Neck Undershirts T Shirts Black**Zcaynger**$11.97**4.1★**▲ 887%**](https://www.amazon.com/dp/B0FQ4ZGQLY) [**KtwHarnu Toddler Baby Boy Summer Clothes Train Engine Embroidery Short Sleeve T Shirt Plaid Shorts Set Infant 2 Piece Outfit (Blue 18-24 Months)**KtwHarnu**$15.66**4.8★**▲ 821%**](https://www.amazon.com/dp/B0F9148H4W) [**UGKIamous 1Pc Railroad Engineer Hat Train Conductor Hat Suitable for Matching Denim Overalls for Men and Women (One Size Blue and White)**UGKIamous**$13.00**4.7★**▲ 735%**](https://www.amazon.com/dp/B0FLD23XZM) [**InSpirit Designs Thomas & Friends Kids Ride-Along Costume | Officially licensed | Thomas the Train Costume - One Size Fits Most**InSpirit Designs**$39.22**1.0★**▲ 658%**](https://www.amazon.com/dp/B0DTV6T89F) [**Aeromax Train Engineer Suit Adult Large**Aeromax**$54.01**4.3★**▲ 630%**](https://www.amazon.com/dp/B000XGMKM2)
**~~View all trending →~~**
## **What buyers say about thomas the train costume**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Advertised Vs Actual Product**40%
*“As advertised”*
**Quality-Overall**20%
*“well made”*
**Size-Overall**20%
*“fit well”*
**Adjustability/Rotatability/Reclining**20%
*“He loves it great quality adjustable fit”*
### **What buyers complain about **
**Strength**50%
*“its definitely pretty flimsy”*
**Ease Of Cleaning**50%
*“Product I received was dirty”*
### **Top return reasons **
**Size-Overall**49%
**Quality-Overall**19%
**Advertised Vs Actual Product**6%
**Length**3%
**Material Quality**3%
**Waist Fit**2%
**Product Condition**2%
**Smell**2%
**Defective Material/Parts**1%
**Wrinkles**1%
## **Common questions**
- **Is thomas the train costume profitable to sell on Amazon United States?**
- The niche generates $0/yr across 10 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +0.7%. Flapen's verdict: Skip it (35/100).
- **How competitive is the thomas the train costume niche?**
- 10 brands and 23 sellers compete. The top 5 products take 79% of clicks and top 5 brands hold 79% of demand.
- **What do buyers complain about in thomas the train costume?**
- Top complaints mined from reviews: Strength, Ease Of Cleaning. The return rate is 6.7% — above our launch gate.
- **When does demand for thomas the train costume peak?**
- Demand peaks in Sep–Oct; the busiest month runs 46.3× the quietest.
- **What does it cost to enter the thomas the train costume niche?**
- Listings span $11.97–$54.01; the average listing price is $30.07 (sweet spot $15–$100). The average incumbent carries 326 reviews — the moat a new listing must climb.
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