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55

swim diapers size 7

Worth a look

Shows low returns (0.4%), but a concentrated shelf (top 5 take 86% of clicks) keeps it on the watch list.

Market size 51Growth 97Conversion 96Competition 12Returns 98Price range 61Avg price 79Brand share 14Review moat 29Quality gap 23

Returns

Incredible0.4%

return rate — above 6% kills the launch gate

Growth

Incredible+185.7%

90-day search growth — must beat 0% to launch

Conversion

Incredible14.4%

search→purchase rate — share of searches ending in a sale

Avg price

Great$16.59

avg listing price — sweet spot $15–$100

Price range

Good$6.42–$28.22

cheapest to priciest tracked listing — scored on the share inside $15–$100

Market size

Good$297K

$297K/yr · 124K searches

Review moat

Okay3,575.2

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Brand share

Bad95%

top-5 brand share — brand-locked demand

Competition

Bad86%

top-5 click share — a locked-up shelf

Competition

The top 5 products capture 86% of clicks — a locked-up shelf that new listings rarely crack.

Brands

7 falling

Sellers

10

Top-5 brand share

95%

Open market

3%

  • Pampers47%
  • Hello Bello24%
  • MooMoo Baby13%
  • MomEasier7%
  • alpree3%
  • Nuby3%
  • Open — no brand owns it (1 brand, 3%)

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%15%$45K30%$89K45%$134K60%$178K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 10 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +185.7% search growth over the last 90 days.
7K5KSpike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: May, Jun, Jul · busiest ÷ quietest = 11.6×

Reviews

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

What buyers love

Size-Overall21%

“Fit well”

Comfort-Overall10%

“These are comfortable”

Quality-Overall8%

“very well constructed”

Design-Overall8%

“The designs are pretty cute”

Value For Money6%

“the price for this quantity is super fair”

Water Resistance6%

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

Soft Feel6%

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

Stretchability/Expandability/Elasticity6%

“the elastic seems comfortable”

Ease Of Use4%

“Very convenient”

Advertised Vs Actual Product3%

“Better than expected”

What buyers complain about

Size-Overall16%

“Was too small reordered larger size”

Functionality-Overall12%

“Didnt work for me”

Leak-Proof9%

“these are not leak proof”

Absorbency4%

“although its not the best trade out since swim diapers are non absorbing”

Value For Money4%

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

Moist/Dry1%

“long enough to become damp dry”

Advertised Vs Actual Product1%

“This is false advertising”

Quality-Overall1%

“Honestly, this is unacceptable and unsanitary”

Thickness1%

“The material is thinner than a regular diaper”

Water Resistance1%

“it was still a little gross how much liquid came through once wet”

Top return reasons

Size-Overall70%
Advertised Vs Actual Product6%
Quality-Overall3%
Hip Fit3%
Waist Fit3%
Functionality-Overall3%
Thigh Fit2%
Absorbency2%
Leak-Proof1%
Material Quality1%