baby boy swimsuit
Worth a lookShows a fragmented shelf (top 5 take 11% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Competition
Incredible11%top-5 click share — an open shelf
Brand share
Great45%top-5 brand share — no brand owns this niche
Avg price
Great$18.28avg listing price — sweet spot $15–$100
Price range
Great$9.07–$43.11cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Good$620K$620K/yr · 3.0M searches
Growth
Good+29.6%90-day search growth — must beat 0% to launch
Returns
Okay4.1%return rate — above 5% kills the launch gate
Review moat
Bad4,546.37avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Conversion
Bad1.1%search→purchase rate — share of searches ending in a sale
According to Flapen's Amazon United States niche tracking, baby boy swimsuit is a $620K/yr Amazon United States market (3.0M searches/yr). The top 5 brands hold 45% of demand. Demand peaks in Mar–Apr–May–Jun. Verdict: Worth a look — 58/100.
Data updated Jul 8, 2026 · scored weekly · How we score niches
baby boy swimsuit market data
- Units sold / yr
- 25K–30K
- avg 100–250/product
- Revenue / yr
- $457K–$548K
- units × avg price
- Conversion rate
- 1.1%
- Avg BSR
- #28
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 91%
- Out of stock
- 1.2%
- Avg brand age
- 36 months
- Avg seller age
- 159 days
Competition & brand share
Clicks spread well past the top 5 (11% combined) — an open shelf where new products get seen.Brands
63 rising
Sellers
71
Top-5 brand share
45%
Top 20: 78%
Top-5 click share
11%
Top 20: 31%
Open market
52%
- Simple Joys by Carter's12%
- UMELOK10%
- Hnyenmcko8%
- maamgic7%
- The Children's Place6%
- upandfast5%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +29.6% search growth over the last 90 days.Peak months: Mar, Apr, May, Jun · busiest ÷ quietest = 9.8×
Top baby boy swimsuit search terms
- baby boy swimsuit409K/yr
- toddler swimsuit boy313K/yr
- toddler boy swimsuit275K/yr
- baby swimsuit boy285K/yr
- toddler swim trunks121K/yr
- toddler boy swim trunks106K/yr
- 3t swimsuit boys97K/yr
- 2t swimsuit boys94K/yr
- infant swimsuit boy88K/yr
- toddler bathing suit boy75K/yr
Top baby boy 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Hnyenmcko Baby/Toddler Boy Rash Guard Swimsuit Long Sleeve One Piece Zipper Swimwear Sunsuit Infant Bathing Suit Beachwear (Animal-Beige 3-6 Months)
Hnyenmcko$17.114.6★583 rev
Amazon Essentials Unisex Babies x Sofia Grainge Baby Boys and Toddlers Long Sleeve Rashguard and Shorts Set Ivory Navy Even Stripe 0-3 Months
Amazon Essentials$21.534.7★66 rev
UMELOK Baby Boy Swimwear Infant Bathing Suit Rash Guard Swimwear UPF 50+ Sun Protection Swimsuit Rashguard Sunsuit Blue Marine animals-12-18M
UMELOK$17.344.8★541 rev
Simple Joys by Carters Baby and Toddler Boys 2-Piece Swimsuit Trunk and Rashguard
Simple Joys by Carter's$18.934.8★45,021 rev
Hnyenmcko Baby/Toddler Boy Rash Guard Swimsuit Long Sleeve One Piece Zipper Swimwear Sunsuit Infant Bathing Suit Beachwear (Turtle-Green 6-12 Months)
Hnyenmcko$16.954.6★583 rev
Newest
by launch dateAmazon Essentials Unisex Babies x Sofia Grainge Baby Boys and Toddlers Long Sleeve Rashguard and Shorts Set Ivory Navy Even Stripe 0-3 Months
Amazon Essentials$21.5366 rev
Simple Joys by Carters Baby and Toddler Boys 2-Piece Swimsuit Trunk and Rashguard
Simple Joys by Carter's$18.9345,021 rev
Simple Joys by Carters Baby and Toddler 2-Pack 1-Piece Zip Rashguards
Simple Joys by Carter's$28.024,470 rev
Simple Joys by Carters Baby Boys 2-Pack 1-Piece Zip Rashguards Blue/Red 6-9 Months
Simple Joys by Carter's$27.254,470 rev
Gueuusu Baby Boys Girls Swimsuit One Piece Striped Zipper Bathing Suit Rash Guard Long Sleeve Seersucker Swimwear Sunsuit (Blue 3-6 Months)
Gueuusu$18.40103 rev
Trending
90-day click momentumAmazon Essentials Unisex Babies x Sofia Grainge Baby Boys and Toddlers Long Sleeve Rashguard and Shorts Set Ivory Navy Even Stripe 0-3 Months
Amazon Essentials$21.534.7★
upandfast Infant Boy Swimsuit UPF 50+ Sun Protection Baby Boys Swimwear One Piece Bathing Suit with Sun Hat (Green Whale 9-12 Months)
upandfast$19.804.8★
UMELOK Toddler Boy Swimsuit Baby Rash Guard Swimwear Rashguard UPF 50+ Sun Protection Bathing Suit Sunsuit Blue Marine animals-24-36M
UMELOK$17.564.8★
UMELOK Baby Boy Swimsuit One Piece Rashguard Swimsuit with Hat Grey Dinosaur 9-12 Months
UMELOK$18.604.7★
UMELOK Toddler Boy Swimsuit Baby Rash Guard Swimwear Rashguard UPF 50+ Sun Protection Bathing Suit Sunsuit Blue Marine animals-18-24M
UMELOK$17.674.8★
What buyers say about baby boy swimsuit
What buyers praise and complain about, mined from review topics.What buyers love
“Fits as expected”
“Adorable and well-made”
“very colorful”
“It was comfortable material”
“Quality and comfort”
“Worth the Money”
“Easy to use”
“Great product very stretchy and light”
“As advertised”
“The material is soft, comfortable, and feels great against my baby's skin”
What buyers complain about
“Too large”
“Poor quality and size was off too small”
“Sleeves are a little long”
“slightly thin”
“The zipper broke after one use”
“Just a little complex to put on”
“My babies have sensitive skin”
“cheap and not worth the price”
“Color not as expected”
“Crotch to waist is short”
Top return reasons
Common questions
- Is baby boy swimsuit profitable to sell on Amazon United States?
- The niche generates $620K/yr across 254 tracked products. 35 of 89 products launched in the last 360 days are still selling. 90-day search growth is +29.6%. Flapen's verdict: Worth a look (58/100).
- How competitive is the baby boy swimsuit niche?
- 63 brands and 71 sellers compete. The top 5 products take 11% of clicks and top 5 brands hold 45% of demand.
- What do buyers complain about in baby boy swimsuit?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Sleeve Fit. The return rate is 4.1%.
- When does demand for baby boy swimsuit peak?
- Demand peaks in Mar–Apr–May–Jun; the busiest month runs 9.8× the quietest.
- What does it cost to enter the baby boy swimsuit niche?
- Listings span $9.07–$43.11; the average listing price is $18.28 (sweet spot $15–$100). The average incumbent carries 4,546 reviews — the moat a new listing must climb.