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18 month pants

Worth a look54/100

18 month pants shows a fragmented shelf (top 5 take 18% of clicks), but a small market ($49K/yr) keeps it on the watch list.

Market/yr

$49K

Growth (1y)

+232.0%

Products

107

Brands

22

was 25 a year ago

Sellers

25

Price range

$9.59–$59.68

Returns

3.3%

Rating

4.7★

54/100

Worth a look

Scored 54/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns
Market size
2
×0.30
Growth
80
×0.30
Competition
97
×0.20
Quality gap
24
×0.10
Returns
74
×0.10

Demand

Weekly Amazon search volume, last 102 weeks — +232.0% year over year.
5K3KPrime Day '24Spike '24Prime Day '25Spike '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26

Seasonality

Monthly demand index across the year — 1.00 is average.

Peak months: Sep, Oct, Nov, Dec · busiest ÷ quietest = 4.2×

Competition

37%Simple Joys by Carter's
  • Simple Joys by Carter's37%
  • Amazon Essentials17%
  • Gerber9%
  • DREAM BUS6%
  • The Children's Place6%
  • Coaturi4%
  • Other (16 brands)21%

Clicks spread well past the top 5 (18% combined) — an open shelf where new products get seen. 22 brands and 25 sellers compete here.

Brands

22 falling

was 25 a year ago

Sellers

25

Top 5 brand share

75%

#ProductBrandPriceRatingReviewsClick shareTrend
1Simple Joys by Carter's$16.384.8★37,9386%rising
2Simple Joys by Carter's$16.824.8★37,9385%falling
5Simple Joys by Carter's$16.724.8★67,7163%falling
6Simple Joys by Carter's$16.184.8★37,9382%rising
10Simple Joys by Carter's$16.394.8★67,7162%rising
11Simple Joys by Carter's$16.064.8★37,9382%rising
12The Children's Place$21.584.6★1,5002%falling
13Simple Joys by Carter's$15.664.8★37,9382%rising

Product shelf

All 107 tracked products in this niche.

Reviews

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

What buyers love

Quality-Overall19%

“bettering quality than expected”

Size-Overall16%

“Fits perfect”

Soft Feel9%

“Sooo soft”

Value For Money5%

“Great value”

Color5%

“The colors are cute”

Material Quality5%

“Soft material”

Advertised Vs Actual Product5%

“Very cute and as advertised”

Stretchability/Expandability/Elasticity4%

“The elastic waist allows for easy on”

Comfort-Overall4%

“Fits comfortably”

Warmth3%

“Keeps my baby warm when its cold”

What buyers complain about

Size-Overall29%

“Too big”

Thickness10%

“They are a bit thin”

Transparency6%

“See through”

Waist Fit5%

“Runs small and the waist is short”

Color4%

“The cream colored pair is petty thin”

Stretchability/Expandability/Elasticity3%

“not super elastic”

Length3%

“She grows into the length because they were a little long for her”

Quality-Overall3%

“Just not the best”

Material Quality3%

“Didn't care for the generic material appearing fake and shiny”

Thigh Fit2%

“These are really tight in the legs, which is not what I expected from U shaped pants, slightly long and surprisingly thin”

Top return reasons

  • Size-Overall53%
  • Waist Fit12%
  • Length8%
  • Material Quality5%
  • Inseam Fit3%
  • Thin3%
  • Advertised Vs Actual Product2%
  • Color2%
  • Thigh Fit2%
  • Quality-Overall2%

Data scraped July 8, 2026 · Marketplace baseline: 4.4★ avg rating · $22.72 median price · 2.2% median returns across 14,725 tracked niches.