Thermal Underwear for Kids
FailDemand is soft, at -87.7% this quarter, so Thermal Underwear for Kids is a Fail.
- Flapen Score
- 45 / 100Ranks 8,414 of 16,930 Clothing, Shoes & Jewelry niches · on the category median45
- Market size
- $249K/yr1.0M searches / yr
- 90-day growth
- -87.7%search demand this quarter
- Competition
- 30%top-5 click share · 30 brands · 79 sellers
Flapen Score
Thermal Underwear for Kids against its category
The dotted line is the Clothing, Shoes & Jewelry average. Past it, Thermal Underwear for Kids is stronger. Inside it, weaker.
Market
The Thermal Underwear for Kids market on Amazon at a glance
Shoppers on Amazon United States searched for Thermal Underwear for Kids 1.0M times last year and spent an estimated $249K. The top 5 brands take 58% of clicks. Demand peaks in Jan–Feb–Oct–Nov–Dec. Flapen scores it 45 out of 100, a Fail.
01 · Demand
An estimated 1.1% of those searches ended in a purchase.
Shoppers searched for this 1.0M times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 1.1% of those searches ended in a purchase. Searches in the last 90 days moved -87.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated $249K a year.
- Searches, last 12 months
- 1.0M
- Growth, 90 days vs prior 90
- -87.7%
- Conversion, latest week
- 1.1%
- Market size, estimated
- $249Ka year
- Peak month
- December28.7× the quietest month
- Top search term
- thermal underwear for kids143K searches a year
02 · Price
A sale here is worth $21.61.
Listings sell for $21.61 on average, from $12.12 to $62.37. Amazon reports units sold in ranges. This niche sold 20K to 25K a year. The average listing sells 250 to 500 of them. At $21.61 that is $5K to $11K a year per listing.
- Average price
- $21.61inside the $15 to $100 sweet spot
- Price range
- $12.12–$62.37
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 20K–25K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $5K–$11K
- Returns
- 7.9%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads.
95% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 9.0% of listings are out of stock. The average listing ranks #26 within Clothing. It carries 1,145 reviews at 4.64 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 95%
- Prime listings
- 100%
- Out of stock, average day
- 9.0%
- Average rank
- #26in Clothing
- Average rating
- 4.64 starsAmazon United States average 4.42 stars
- Average reviews
- 1,145per listing
- Listings tracked
- 74
04 · Newcomers
0 of last year's 13 launches cleared the first-year sales bar.
13 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 44 months on average, so the names here are settling in.
- Launched, last 12 months
- 13
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 44 months
Products
Top Thermal Underwear for Kids products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 8, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
TELALEO Boys Girls Thermal Set Fleece Lined Underwear Set Kids Compression Shirts Athletic Sports Tops Leggings Baselayer Shirts/Pants Set M
- Price
- $18.55
- Rating
- 4.8/5
- Reviews
- 2,926
- Age
- 6y ago

TELALEO Boys Girls Thermal Set Fleece Lined Underwear Set Kids Compression Shirts Athletic Sports Tops Leggings Baselayer Shirts/Pants Set S
- Price
- $18.64
- Rating
- 4.8/5
- Reviews
- 2,926
- Age
- 6y ago

Spyder Kids Thermal Underwear Set - 2 Piece Soft Stretch Moisture Wicking Girls Boys Thermal Set Long Johns for Kids Size 16-18 Black
- Price
- $20.91
- Rating
- 4.7/5
- Reviews
- 208
- Age
- 1y ago

Girls Underwear Kids Thermal Underwears Toddler Winter Base Layer Long Johns Sets for Boys A Black Large (100) /3T-4T
- Price
- $16.91
- Rating
- 4.7/5
- Reviews
- 1,210
- Age
- 4y ago

TELALEO Boys Girls Thermal Set Fleece Lined Underwear Set Kids Compression Shirts Athletic Sports Tops Leggings Baselayer Shirts/Pants Set XS
- Price
- $18.52
- Rating
- 4.8/5
- Reviews
- 2,926
- Age
- 6y ago
Trending
estimated 90-day click momentum
Runhit Thermal Underwear for Kids Long Johns Ultra Soft Long Sleeve Shirts Sets Skiing Base Layer Fleece Lined Pants Suit Black M
- Price
- $12.86
- Rating
- 4.7/5
- Reviews
- 632
- Age
- 2y ago

JZCreater Thermal Underwear for Kids Boys Thermals Top & Bottom Set Long Johns Underwear Base Layer for Cold Winter/Skiing Black
- Price
- $14.68
- Rating
- 4.6/5
- Reviews
- 39
- Age
- 1y ago

Cuddl Duds Girls Heavyweight Fleece Lined 2 Piece Thermal Underwear Set Long Sleeve Shirt & Leggings Base Layer for Cold Weather Winter Clothing Long Johns Lounge Sets for Kids Off White M
- Price
- $26.75
- Rating
- 4.4/5
- Reviews
- 388
- Age
- 1y ago

Spyder Kids Thermal Underwear Set - 2 Piece Soft Stretch Moisture Wicking Girls Boys Thermal Set Long Johns for Kids Size 16-18 Heather Grey
- Price
- $20.49
- Rating
- 4.7/5
- Reviews
- 208
- Age
- 1y ago

Spyder Kids Thermal Underwear Set - 2 Piece Soft Stretch Moisture Wicking Girls Boys Thermal Set Long Johns for Kids Size 16-18 Black
- Price
- $20.91
- Rating
- 4.7/5
- Reviews
- 208
- Age
- 1y ago
Newest
by launch date
Rolimaka Boys Thermal Underwear Set kids Fleece Lined Leggings Pants Compression Long Johns Base Layer Top and Bottom M
- Price
- $14.14
- Rating
- 4.7/5
- Reviews
- 165
- Age
- 10mo ago

WELAKEN Girls Warm Thermal Underwear Set Kids Winter Base Layer Long Johns Sets for Cold weather/skiing Pink
- Price
- $18.87
- Rating
- 4.8/5
- Reviews
- 147
- Age
- 10mo ago

JZCreater Thermal Underwear for Kids Boys Thermals Top & Bottom Set Long Johns Underwear Base Layer for Cold Winter/Skiing Black
- Price
- $14.68
- Rating
- 4.6/5
- Reviews
- 39
- Age
- 1y ago

JZCreater Thermal Underwear for Kids Boys Thermals Top & Bottom Set Long Johns Underwear Base Layer for Cold Winter/Skiing Black
- Price
- $16.06
- Rating
- 4.6/5
- Reviews
- 39
- Age
- 1y ago

Spyder Kids Thermal Underwear Set - 2 Piece Soft Stretch Moisture Wicking Girls Boys Thermal Set Long Johns for Kids Size 16-18 Black
- Price
- $20.91
- Rating
- 4.7/5
- Reviews
- 208
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 30% of clicks, no more. An open shelf where new products get seen.
Brands
30 falling
Sellers
79
Est. top-5 brand share
58%
Top 20: 94%
Est. top-5 click share
30%
Top 20: 63%
Open market
37%
- TELALEO22%
- Spyder13%
- Rocky8%
- Rolimaka8%
- American Trends7%
- Cuddl Duds6%
Demand
Thermal Underwear for Kids search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jan, Feb, Oct, Nov, Dec · busiest ÷ quietest = 28.7×
Search terms
Top Thermal Underwear for Kids search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- thermal underwear for kids143K/yr
- kids thermal underwear set139K/yr
- boys thermal set96K/yr
- kids thermals48K/yr
- toddler thermal set101K/yr
- thermals for kids61K/yr
- girls thermal underwear set54K/yr
- long underwear boys26K/yr
- long johns for kids63K/yr
- base layer kids26K/yr
Reviews and returns
What reviews say buyers love and hate about Thermal Underwear for Kids
We read the reviews and the return reasons for every product selling here.
“They do run a little bit big”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
21 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Thermal Underwear for Kids questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









