baby clothes 12-18 months boys
Worth a lookShows a fragmented shelf (top 5 take 26% of clicks), but a small market ($43K/yr) keeps it on the watch list.
Competition
Great26%top-5 click share — an open shelf
Brand share
Great46%top-5 brand share — no brand owns this niche
Returns
Great1.6%return rate — above 5% kills the launch gate
Price range
Good£5.16–£27.52cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Good£12.44avg listing price — sweet spot $15–$100
Review moat
Okay2,085.38avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Conversion
Okay2.5%search→purchase rate — share of searches ending in a sale
Growth
Bad-11.9%90-day search growth — must beat 0% to launch
Market size
Bad£43K£43K/yr · 135K searches
According to Flapen's Amazon United Kingdom niche tracking, baby clothes 12-18 months boys is a £43K/yr Amazon United Kingdom market (135K searches/yr). The top 5 brands hold 46% of demand. Demand peaks in Nov–Dec. Verdict: Worth a look — 50/100.
Data updated Jul 23, 2026 · scored weekly · How we score niches
baby clothes 12-18 months boys market data
- Units sold / yr
- 3K–3K
- avg 0–100/product
- Revenue / yr
- £31K–£37K
- units × avg price
- Conversion rate
- 2.5%
- Avg BSR
- #120
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 80%
- Out of stock
- 6.8%
- Avg brand age
- 41 months
- Avg seller age
- 183 days
Competition & brand share
Clicks spread well past the top 5 (26% combined) — an open shelf where new products get seen.Brands
31 falling
Sellers
45
Top-5 brand share
46%
Top 20: 93%
Top-5 click share
26%
Top 20: 55%
Open market
48%
- Kumsolu14%
- Geagodelia9%
- TCWWBB9%
- NautySaurs7%
- Xumplo7%
- Levi's6%
Demand & seasonality
Weekly Amazon search volume, last 84 weeks — -11.9% search growth over the last 90 days.Peak months: Nov, Dec · busiest ÷ quietest = 3.5×
Top baby clothes 12-18 months boys search terms
- 12-18 months boys clothes25K/yr
- baby boy clothes 12-18 months15K/yr
- boys clothes 12-18 months16K/yr
- 9-12 months boys clothes14K/yr
- 18-24 months boys clothes16K/yr
- 1 year old boy clothes11K/yr
- baby clothes 12-18 months boys12K/yr
- baby boy clothes 9-12 months12K/yr
- baby tracksuit9K/yr
- baby clothes 9-12 months boys6K/yr
Top baby clothes 12-18 months boys 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
Kumsolu Toddler Baby Boy Clothes Long Sleeve Sweatshirt Trouser Set Tracksuit Outfits
Kumsolu£14.984.3★189 rev
TCWWBB Kids Boys Summer Short Outfits Clothes Set Toddler Cool Dinosaur Digger Shark Animal Print Short Sleeve Cotton T-Shirt Tops and Shorts 2Pcs Crewneck Clothing Set Age 1-7 Years Old
TCWWBB£12.544.4★32 rev
Levis Kids s/s Batwing Tee Baby Boys White 18 Months
Levi's£7.524.6★10,033 rev
Vioyavo Infant Baby Boys 2Pcs Tracksuit Stripes Print Long Sleeve Romper Elastic Waist Long Pants Set Casual Clothes Set Spring Fall (L Blue 9-12 Months)
Vioyavo£9.814.3★82 rev
adidas Unisex Baby Big Logo Essentials Jogger Track Suit Black/White 12-18 Months
adidas£18.874.6★640 rev
Newest
by launch dateadidas Unisex Baby Big Logo Essentials Jogger Track Suit Black/White 12-18 Months
adidas£18.87640 rev
Loalirando Toddler Baby Girl Boy Summer Clothes Outfits Casual Embroidered Animal Short Sleeve T Shirt Tops Shorts Cute Clothing Set (Blue 12-18 Months)
Loalirando£10.132 rev
NautySaurs Toddler Boys 4 Pieces T-shirts and Shorts Summer Outfit Striped Short Set White+Blue 12 Months
NautySaurs£14.81148 rev
NautySaurs Toddler Boys 4 Pieces T-shirts and Shorts Summer Outfit Striped Short Set Yellow+Blue 18 Months
NautySaurs£15.30148 rev
Xumplo Baby Boys Outfits Infants Short Sleeve Polo Shirt and Shorts Sets Toddlers 2-Piece Striped Summer Clothes 12-18 Months
Xumplo£12.902 rev
Trending
90-day click momentumNautySaurs Toddler Boys 4 Pieces T-shirts and Shorts Summer Outfit Striped Short Set Yellow+Blue 18 Months
NautySaurs£15.304.5★
Loalirando Toddler Baby Girl Boy Summer Clothes Outfits Casual Embroidered Animal Short Sleeve T Shirt Tops Shorts Cute Clothing Set (Blue 12-18 Months)
Loalirando£10.135.0★
NautySaurs Toddler Boys 4 Pieces T-shirts and Shorts Summer Outfit Striped Short Set White+Blue 12 Months
NautySaurs£14.814.5★
Xumplo Baby Boys Outfits Infants Short Sleeve Polo Shirt and Shorts Sets Toddlers 2-Piece Striped Summer Clothes 12-18 Months
Xumplo£12.904.0★
Geagodelia First Birthday Outfits Baby Boy Summer One Birthday Clothes Toddler Boys Number Pattern Animal T-shirt Rolled Shorts (Animal Blue 12-18 Months)
Geagodelia£10.624.5★
What buyers say about baby clothes 12-18 months boys
What buyers praise and complain about, mined from review topics.What buyers love
“It also seems well made”
“Fit great”
“Great price for how many you get”
“The childs parents are very pleased with the material and the sizing”
“The material feels soft and comfortable, which is perfect for a babys skin”
“the colours are clear and vibrant”
“Comfortable”
“Will be great for a summers night as it won't be too hot for baby if out a walk”
“the designs are cute too”
“Great gift”
What buyers complain about
“Slightly big on him”
“the thigh fit is a bit small so if you have a shorter chunkier baby then bare that in mind”
Top return reasons
Common questions
- Is baby clothes 12-18 months boys profitable to sell on Amazon United Kingdom?
- The niche generates £43K/yr across 74 tracked products. 0 of 24 products launched in the last 360 days are still selling. 90-day search growth is -11.9%. Flapen's verdict: Worth a look (50/100).
- How competitive is the baby clothes 12-18 months boys niche?
- 31 brands and 45 sellers compete. The top 5 products take 26% of clicks and top 5 brands hold 46% of demand.
- What do buyers complain about in baby clothes 12-18 months boys?
- Top complaints mined from reviews: Size-Overall, Thigh Fit. The return rate is 1.6%.
- When does demand for baby clothes 12-18 months boys peak?
- Demand peaks in Nov–Dec; the busiest month runs 3.5× the quietest.
- What does it cost to enter the baby clothes 12-18 months boys niche?
- Listings span £5.16–£27.52; the average listing price is £12.44 (sweet spot $15–$100). The average incumbent carries 2,085 reviews — the moat a new listing must climb.