Skip to content

18 month clothes

Worth a look59/100

18 month clothes shows a fragmented shelf (top 5 take 18% of clicks), but a small market ($66K/yr) keeps it on the watch list.

Market/yr

$66K

Growth (1y)

+431.9%

Products

145

Brands

57

was 68 a year ago

Sellers

62

Price range

$6.94–$26.34

Returns

2.6%

Rating

4.7★

59/100

Worth a look

Scored 59/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns
Market size
3
×0.30
Growth
95
×0.30
Competition
97
×0.20
Quality gap
25
×0.10
Returns
79
×0.10

Demand

Weekly Amazon search volume, last 104 weeks — +431.9% year over year.
14K7KPrime Day '24Holiday '24Spike '25Prime Day '25Holiday '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26

Seasonality

Monthly demand index across the year — 1.00 is average.

Peak months: Dec · busiest ÷ quietest = 2.4×

Competition

10%Simple Joys by Carter's
  • Simple Joys by Carter's10%
  • Amazon Essentials9%
  • Onesies Brand7%
  • Mioglrie6%
  • Voonlie6%
  • Tiny Cutey4%
  • Other (51 brands)58%

Clicks spread well past the top 5 (18% combined) — an open shelf where new products get seen. 57 brands and 62 sellers compete here.

Brands

57 falling

was 68 a year ago

Sellers

62

Top 5 brand share

38%

#ProductBrandPriceRatingReviewsClick shareTrend
1Onesies Brand$22.594.8★2,2304%flat
13Onesies Brand$23.154.8★2,2301%flat

Product shelf

All 145 tracked products in this niche.

Reviews

What buyers praise and complain about, mined from review topics.

What buyers love

Size-Overall23%

“Fit is normal size”

Quality-Overall15%

“Good variety”

Comfort-Overall7%

“So comfortable”

Soft Feel6%

“So soft and buttery”

Value For Money5%

“Great value”

Color5%

“Color is cute”

Material Quality4%

“Good material”

Advertised Vs Actual Product3%

“Just as described”

Ease Of Use3%

“Easy”

Weight Light2%

“Super light and like that they are easy to put on”

What buyers complain about

Size-Overall29%

“Bigger than expected”

Quality-Overall9%

“Cheaply made”

Material Quality6%

“material looks a little cheap”

Strap/String Quality4%

“so the straps do slip a little”

Ease Of Use2%

“Inconvenient”

Thickness2%

“The fabric is not at all a thick”

Hard Feel2%

“Not soft enough to be considered as bare foot”

Value For Money2%

“Not worth it”

Durability2%

“Not durable”

Smell1%

“Chemical smell”

Top return reasons

  • Size-Overall48%
  • Feet Fit16%
  • Length11%
  • Material Quality6%
  • Quality-Overall2%
  • Advertised Vs Actual Product2%
  • Width2%
  • Color2%
  • Value For Money1%
  • Thin1%

Data scraped July 8, 2026 · Marketplace baseline: 4.4★ avg rating · $22.65 median price · 2.2% median returns across 14,117 tracked niches.