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swim diaper size 5

Skip it52/100

strong incumbent ratings (4.7★) — swim diaper size 5 doesn't clear our bar today.

Market/yr

$2.4M

Growth (1y)

+99.1%

Products

13

Brands

6

was 12 a year ago

Sellers

7

Price range

$6.42–$20.40

Returns

0.5%

Rating

4.7★

52/100

Skip it

Scored 52/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns
Market size
52
×0.30
Growth
65
×0.30
Competition
26
×0.20
Quality gap
24
×0.10
Returns
96
×0.10

Demand

Weekly Amazon search volume, last 104 weeks — +99.1% year over year.
40K20KSpike '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26

Seasonality

Monthly demand index across the year — 1.00 is average.

Peak months: May, Jun, Jul · busiest ÷ quietest = 10.5×

Competition

45%MooMoo Baby
  • MooMoo Baby45%
  • Pampers31%
  • Hello Bello15%
  • MomEasier5%
  • Joyo roy2%
  • Nuby2%
  • Other0%

The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack. 6 brands and 7 sellers compete here.

Brands

6 falling

was 12 a year ago

Sellers

7

Top 5 brand share

98%

#ProductBrandPriceRatingReviewsClick shareTrend

Product shelf

All 13 tracked products in this niche.

Reviews

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

What buyers love

Size-Overall18%

“fit securely”

Stretchability/Expandability/Elasticity12%

“the elastic seems comfortable”

Quality-Overall10%

“These are well made”

Water Resistance7%

“secure so that your little one can enjoy play time in the water”

Design-Overall7%

“The designs are pretty cute”

Comfort-Overall6%

“These are comfortable”

Soft Feel6%

“I find them softer than some of the other competing brands out there”

Value For Money6%

“these are definitely worth considering”

Ease Of Use4%

“Very convenient”

Leak-Proof2%

“absorb well without leaking on the way to swim lessons if he happens to wet himself before getting into the pool”

What buyers complain about

Water Resistance8%

“otherwise it would just soak up all the pool water”

Leak-Proof8%

“these are not leak proof”

Size-Overall6%

“They might be a little too big still for my baby come summer”

Value For Money6%

“I do find these a bit expensive as each swim diaper is well over a dollar”

Functionality-Overall5%

“These do NOT work at all”

Allergies2%

“.He has eczema”

Absorbency2%

“They dont absorb water either”

Thickness2%

“The material is thick”

Stitch/Finish/Polish2%

“a bit tight at the seams”

Adjustability/Rotatability/Reclining2%

“they are not adjustable”

Top return reasons

  • Size-Overall73%
  • Advertised Vs Actual Product4%
  • Waist Fit3%
  • Quality-Overall3%
  • Hip Fit2%
  • Absorbency2%
  • Material Quality2%
  • Thigh Fit2%
  • Functionality-Overall2%
  • Leak-Proof1%

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