12-18 months girls clothes
Worth a lookShows a fragmented shelf (top 5 take 15% of clicks), but a small market ($47K/yr) keeps it on the watch list.
Competition
Incredible15%top-5 click share — an open shelf
Brand share
Incredible38%top-5 brand share — no brand owns this niche
Returns
Great1.5%return rate — above 5% kills the launch gate
Price range
Okay£4.10–£24.17cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Okay2,066.7avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Avg price
Okay£11.15avg listing price — sweet spot $15–$100
Growth
Bad-11.9%90-day search growth — must beat 0% to launch
Conversion
Bad1.6%search→purchase rate — share of searches ending in a sale
Market size
Bad£47K£47K/yr · 272K searches
According to Flapen's Amazon United Kingdom niche tracking, 12-18 months girls clothes is a £47K/yr Amazon United Kingdom market (272K searches/yr). The top 5 brands hold 38% of demand. Demand peaks in Dec. Verdict: Worth a look — 50/100.
Data updated Jul 23, 2026 · scored weekly · How we score niches
12-18 months girls clothes market data
- Units sold / yr
- 3K–4K
- avg 0–100/product
- Revenue / yr
- £33K–£45K
- units × avg price
- Conversion rate
- 1.6%
- Avg BSR
- #66
- Page quality
- 0%
- Prime
- 94%
- Sponsored
- 75%
- Out of stock
- 7.2%
- Avg brand age
- 42 months
- Avg seller age
- 181 days
Competition & brand share
Clicks spread well past the top 5 (15% combined) — an open shelf where new products get seen.Brands
62 falling
Sellers
72
Top-5 brand share
38%
Top 20: 76%
Top-5 click share
15%
Top 20: 35%
Open market
57%
- Amazon Essentials11%
- XIXIMAON11%
- Geagodelia6%
- Beauace5%
- KIDDLETOWN5%
- NNJXD4%
Demand & seasonality
Weekly Amazon search volume, last 81 weeks — -11.9% search growth over the last 90 days.Peak months: Dec · busiest ÷ quietest = 2.1×
Top 12-18 months girls clothes search terms
- baby dress33K/yr
- baby girl dress29K/yr
- baby girl dresses18K/yr
- 12-18 months girls clothes27K/yr
- newborn girl clothes 0-3 months14K/yr
- baby dresses 0-3 months girls13K/yr
- baby girl clothes 12-18 months16K/yr
- 9-12 months girls clothes16K/yr
- 18-24 months girls clothes15K/yr
- baby girl dress 0-3 months8K/yr
Top 12-18 months girls clothes 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
Amazon Essentials x Sofia Grainge Girls Smocked Cotton Dress Pale Mint Green Ditsy Floral 2 Years
Amazon Essentials£14.594.5★111 rev
Beauace Baby Girl Clothes Newborn Sommer Outfit Floral Print Dress One Piece Jumpsuit + Long Socks + Headband Sets Ruffle Outfits (Pink 3-6 Months)
Beauace£10.114.7★6 rev
BeliBacca Newborn Baby Girl Summer Outfits Ruffle Short Sleeve Bowknot Floral Patchwork Romper Dress Headband Socks Set Infants Girl 3 Pieces Clothes Cute Dress (Pink 0-3 Months)
BeliBacca£9.503.8★11 rev
Amazon Essentials Baby Girls Sleeveless Bodysuit Dress Pack of 3 Floral/Pale Yellow 0-3 Months
Amazon Essentials£15.254.8★847 rev
XIXIMAON Newborn Baby Girl Romper Dress Doll Collar Sleeveless Daisy Flower Print Jumpsuit Infant Girl One Piece Clothes (Yellow 0-3 Months)
XIXIMAON£8.844.9★12 rev
Newest
by launch date
XIXIMAON Newborn Summer Dress Floral Embroidered Bowknot Ruffle Sleeveless Tulle Tutu Dress Baby Girl Cherry Layered Dress Infant Birthday Party Dress (Red 0-3 Months)
XIXIMAON£9.194 rev
Amazon Essentials x Sofia Grainge Girls Smocked Cotton Dress Pale Mint Green Ditsy Floral 2 Years
Amazon Essentials£14.59111 rev
BeliBacca Newborn Baby Girl Summer Outfits Ruffle Short Sleeve Bowknot Floral Patchwork Romper Dress Headband Socks Set Infants Girl 3 Pieces Clothes Cute Dress (Pink 0-3 Months)
BeliBacca£9.5011 rev
Beauace Baby Girl Clothes Newborn Sommer Outfit Floral Print Dress One Piece Jumpsuit + Long Socks + Headband Sets Ruffle Outfits (Pink 3-6 Months)
Beauace£10.116 rev
Ardougudougu Newborn Baby Girl Romper Dress Bow Cute Puff Sleeve Doll Collar Jumpsuit Infant Floral Print Summer Dresses Clothes (Pink 0-3M)
Ardougudougu£9.685 rev
Trending
90-day click momentumAmazon Essentials x Sofia Grainge Girls Smocked Cotton Dress Pale Mint Green Ditsy Floral 2 Years
Amazon Essentials£14.594.5★
XIXIMAON Newborn Summer Dress Floral Embroidered Bowknot Ruffle Sleeveless Tulle Tutu Dress Baby Girl Cherry Layered Dress Infant Birthday Party Dress (Red 0-3 Months)
XIXIMAON£9.195.0★
Amazon Essentials Baby Girls Sleeveless Bodysuit Dress Pack of 3 Floral/Pale Yellow 0-3 Months
Amazon Essentials£15.254.8★
BeliBacca Newborn Baby Girl Summer Outfits Ruffle Short Sleeve Bowknot Floral Patchwork Romper Dress Headband Socks Set Infants Girl 3 Pieces Clothes Cute Dress (Pink 0-3 Months)
BeliBacca£9.503.8★
XIXIMAON Newborn Baby Girl Romper Dress Doll Collar Sleeveless Daisy Flower Print Jumpsuit Infant Girl One Piece Clothes (Yellow 0-3 Months)
XIXIMAON£8.844.9★
What buyers say about 12-18 months girls clothes
What buyers praise and complain about, mined from review topics.What buyers love
“Super cute and well made with lovely detailing”
“Its lovely and snug at great value”
“Good for price”
“Colours are vibrant”
“Lovely and soft”
“Looks as advertised”
“Good quality and smooth material”
“It is so cutely designed”
“comfortable”
“the material has a good amount of stretch”
What buyers complain about
“the socks are quite long though”
“Very cheap looking”
“although the material could be slightly thicker”
“True size, colour went away after a few washes”
“Noticed after putting it on my daughter that the collar was frayed”
“Uncomfortable”
“Very poor thin material”
“not all creases came out”
“The the stitching that keeps the material together around the waste is very thick and rough”
“I had to iron before giving as a gift as it was creased”
Top return reasons
Common questions
- Is 12-18 months girls clothes profitable to sell on Amazon United Kingdom?
- The niche generates £47K/yr across 169 tracked products. 0 of 59 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 12-18 months girls clothes niche?
- 62 brands and 72 sellers compete. The top 5 products take 15% of clicks and top 5 brands hold 38% of demand.
- What do buyers complain about in 12-18 months girls clothes?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Thickness. The return rate is 1.5%.
- When does demand for 12-18 months girls clothes peak?
- Demand peaks in Dec; the busiest month runs 2.1× the quietest.
- What does it cost to enter the 12-18 months girls clothes niche?
- Listings span £4.10–£24.17; the average listing price is £11.15 (sweet spot $15–$100). The average incumbent carries 2,067 reviews — the moat a new listing must climb.