Baby Undershirts
FailBuyers convert on only 1.3% of searches, so Baby Undershirts is a Fail.
- Flapen Score
- 43 / 100Ranks 9,936 of 16,930 Clothing, Shoes & Jewelry niches · −2 vs the category median of 4543
- Market size
- $68K/yr300K searches / yr
- 90-day growth
- -4.6%search demand this quarter
- Competition
- 18%top-5 click share · 25 brands · 34 sellers
Flapen Score
Baby Undershirts against its category
The dotted line is the Clothing, Shoes & Jewelry average. Past it, Baby Undershirts is stronger. Inside it, weaker.
Market
The Baby Undershirts market on Amazon at a glance
Shoppers on Amazon United States searched for Baby Undershirts 300K times last year and spent an estimated $68K. The top 5 brands take 83% of clicks. Demand peaks in Oct–Nov. Flapen scores it 43 out of 100, a Fail.
01 · Demand
An estimated 1.3% of those searches ended in a purchase.
Shoppers searched for this 300K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 1.3% of those searches ended in a purchase. Searches in the last 90 days moved -4.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $68K a year.
- Searches, last 12 months
- 300K
- Growth, 90 days vs prior 90
- -4.6%
- Conversion, latest week
- 1.3%
- Market size, estimated
- $68Ka year
- Peak month
- November1.6× the quietest month
- Top search term
- baby undershirts50K searches a year
02 · Price
A sale here is worth $17.39.
Listings sell for $17.39 on average, from $5.65 to $39.86. Amazon reports units sold in ranges. This niche sold 4K to 5K a year. The average listing sells 0 to 100 of them. At $17.39 that is $0 to $2K a year per listing.
- Average price
- $17.39inside the $15 to $100 sweet spot
- Price range
- $5.65–$39.86
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 4K–5K
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$2K
- Returns
- 2.2%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
89% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 4.3% of listings are out of stock. The average listing ranks #94 within Baby Boys. It carries 10,468 reviews at 4.74 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 89%
- Prime listings
- 100%
- Out of stock, average day
- 4.3%
- Average rank
- #94in Baby Boys
- Average rating
- 4.74 starsAmazon United States average 4.42 stars
- Average reviews
- 10,468per listing
- Listings tracked
- 125
04 · Newcomers
13 of last year's 33 launches cleared the first-year sales bar.
33 products launched here in the last 12 months. 13 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 37 months on average, so the names here are settling in.
- Launched, last 12 months
- 33
- Successful launches
- 13Amazon's first-year sales bar
- Average brand age
- 37 months
Products
Top Baby Undershirts 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
Gerber Baby 8-Pack Short Sleeve Onesies Bodysuits Solid White 12 Months
- Price
- $16.81
- Rating
- 4.8/5
- Reviews
- 56,105
- Age
- 7y ago

Amazon Essentials Unisex Babies Short Sleeve T-Shirts Pack of 3 Oatmeal Heather/White/Stripe 18 Months
- Price
- $14.58
- Rating
- 4.8/5
- Reviews
- 491
- Age
- 1y ago

Gerber Baby 8-Pack Short Sleeve Onesies Bodysuits Solid White 6-9 Months
- Price
- $16.82
- Rating
- 4.8/5
- Reviews
- 56,105
- Age
- 7y ago

Gerber Baby 5-Pack Solid Onesies Bodysuits White 3-6 Months
- Price
- $13.07
- Rating
- 4.8/5
- Reviews
- 58,053
- Age
- 19y ago

Simple Joys by Carters Baby and Toddler Boys 3-Pack Solid Pocket Short-Sleeve Tee Shirts
- Price
- $14.76
- Rating
- 4.8/5
- Reviews
- 24,631
- Age
- 9mo ago
Trending
estimated 90-day click momentum
Gerber Baby 6-Pack Long-Sleeve Side-Snap Mitten-Cuff Shirt white Newborn
- Price
- $17.47
- Rating
- 4.5/5
- Reviews
- 2,152
- Age
- 7y ago

Garanimals Baby Boy Solid T-Shirt - Short Sleeve Tees - Kids Casual Crew Neck - Size 18 Months - Black Dark Green Dark Beige White - 4 Pack
- Price
- $23.84
- Rating
- 4.8/5
- Reviews
- 108
- Age
- 7mo ago

Amazon Essentials Unisex Babies Short Sleeve T-Shirts Pack of 3 White 6-9 Months
- Price
- $14.28
- Rating
- 4.8/5
- Reviews
- 491
- Age
- 1y ago

The Childrens Place Baby Boys Short Sleeve Graphic T-Shirt Infant-and-Toddler-Shirts Aspen Gold|Carrot Stick|Clear Aqua 4T US
- Price
- $13.01
- Rating
- 4.8/5
- Reviews
- 2,053
- Age
- 3y ago

Gerber Baby Girls 15 Piece Onesies Bodysuit Multi Size Pack Shirt White 0-3M 3-6M 6-9M US
- Price
- $35.35
- Rating
- 4.8/5
- Reviews
- 6,640
- Age
- 10y ago
Newest
by launch date
Simple Joys by Carters Baby and Toddler Boys 3-Pack Tank Tops
- Price
- $15.32
- Rating
- 4.8/5
- Reviews
- 10,403
- Age
- 2mo ago

Garanimals Baby Boy Solid T-Shirt - Short Sleeve Tees - Kids Casual Crew Neck - Size 18 Months - Black Dark Green Dark Beige White - 4 Pack
- Price
- $23.84
- Rating
- 4.8/5
- Reviews
- 108
- Age
- 7mo ago

Simple Joys by Carters Baby and Toddler Boys 3-Pack Solid Pocket Short-Sleeve Tee Shirts
- Price
- $14.76
- Rating
- 4.8/5
- Reviews
- 24,631
- Age
- 9mo ago

Amazon Essentials Baby Boys Baby Boys and Toddler 2-Pack T-Shirts Pale Yellow/Stripe 18 Months
- Price
- $14.70
- Rating
- 4.8/5
- Reviews
- 223
- Age
- 1y ago

Amazon Essentials Unisex Babies Relaxed-Fit 100% Cotton Long-Sleeve T-Shirts Pack of 3 Oatmeal Heather/Stripe Newborn
- Price
- $16.29
- Rating
- 4.5/5
- Reviews
- 309
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 18% of clicks, no more. An open shelf where new products get seen.
Brands
25 rising
Sellers
34
Est. top-5 brand share
83%
Top 20: 98%
Est. top-5 click share
18%
Top 20: 42%
Open market
15%
- Gerber35%
- Amazon Essentials26%
- Simple Joys by Carter's10%
- The Children's Place7%
- Garanimals3%
- Burt's Bees Baby2%
- Open — no brand owns it (19 brands, 15%)
Demand
Baby Undershirts search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Oct, Nov · busiest ÷ quietest = 1.6×
Search terms
Top Baby Undershirts search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- baby undershirts50K/yr
- baby shirt26K/yr
- newborn shirts16K/yr
- baby shirts 12-18 months16K/yr
- baby boy shirt16K/yr
- 12 month boy shirts16K/yr
- baby boy shirts 12-18 months18K/yr
- baby boys tops17K/yr
- camisetas para bebe12K/yr
- baby shirts 0-3 months13K/yr
Reviews and returns
What reviews say buyers love and hate about Baby Undershirts
We read the reviews and the return reasons for every product selling here.
“Size up”
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.
19 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 Baby Undershirts 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









