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swim nappies size 5-6

Worth a look

Shows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 32Growth 95Conversion 83Competition 24Returns 100Price range 57Avg price 32Brand share 28Review moat 66Quality gap 50

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Growth

Incredible+125.9%

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

Conversion

Great9.1%

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

Review moat

Good840.38

avg incumbent reviews — the moat a new listing must climb

Price range

Good£3.43–£30.04

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

Quality gap

Good4.5★

avg incumbent rating — lower means beatable quality

Market size

Okay£152K

£152K/yr · 169K searches

Avg price

Okay£9.89

avg listing price — sweet spot $15–$100

Brand share

Okay88%

top-5 brand share — brands hold most of the demand

Competition

Bad71%

top-5 click share — a locked-up shelf

Signals Trending

According to Flapen's Amazon United Kingdom niche tracking, swim nappies size 5-6 is a £152K/yr Amazon United Kingdom market (169K searches/yr). The top 5 brands hold 88% of demand. Demand peaks in May–Jun–Jul–Aug. Verdict: Worth a look — 57/100.

Data updated Jul 18, 2026 · scored weekly · How we score niches

swim nappies size 5-6 market data

Units sold / yr
15K–20K
avg 1,000–1,250/product
Revenue / yr
£148K–£198K
units × avg price
Conversion rate
9.1%
Avg BSR
#19
Page quality
0%
Prime
92%
Sponsored
77%
Out of stock
2.8%
Avg brand age
43 months
Avg seller age
150 days

Competition & brand share

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 rising

Sellers

54

Top-5 brand share

88%

Top 20: 100%

Top-5 click share

71%

Top 20: 100%

Open market

5%

  • HUGGIES36%
  • Bambo Nature20%
  • Pampers15%
  • Linenvale10%
  • Tilz7%
  • TRIZINGA7%
  • Open — no brand owns it (3 brands, 5%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +125.9% search growth over the last 90 days.
10K6KSpike '24Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 5.9×

Top swim nappies size 5-6 search terms

  • swim nappies size 6-736K/yr
  • swim nappies size 5-634K/yr
  • swim nappies size 718K/yr
  • swimming nappies size 716K/yr
  • swimming nappies size 613K/yr
  • swimming nappies size 812K/yr
  • swimming nappies size 59K/yr
  • swim nappies size 67K/yr
  • swim nappies size 55K/yr
  • swim nappies size 7-814K/yr
All search terms

Top swim nappies size 5-6 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.

0%10%£15K20%£30K30%£45K40%£61K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 13 tracked products in this niche — three views at once, no toggling.

What buyers say about swim nappies size 5-6

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

What buyers love

Advertised Vs Actual Product24%

“Does the job”

Size-Overall19%

“Fit well”

Protection17%

“They are good for protection”

Leak-Proof14%

“has worked effectively so far with no leaks”

Value For Money10%

“Good value for money”

Quality-Overall8%

“Good quality”

Soft Feel4%

“Soft, comfortable and no irritation”

Comfort-Overall4%

“comfortable”

Top return reasons

Size-Overall64%
Quality-Overall18%
Water Resistance9%
Design-Overall9%

Common questions

Is swim nappies size 5-6 profitable to sell on Amazon United Kingdom?
The niche generates £152K/yr across 13 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +125.9%. Flapen's verdict: Worth a look (57/100).
How competitive is the swim nappies size 5-6 niche?
9 brands and 54 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 88% of demand.
When does demand for swim nappies size 5-6 peak?
Demand peaks in May–Jun–Jul–Aug; the busiest month runs 5.9× the quietest.
What does it cost to enter the swim nappies size 5-6 niche?
Listings span £3.43–£30.04; the average listing price is £9.89 (sweet spot $15–$100). The average incumbent carries 840 reviews — the moat a new listing must climb.