---
title: "Products — nappies size 4 - Flapen"
canonical_url: "https://flapen.com/research/uk/baby-products/nappies-size-4/products"
last_updated: "2026-07-21T17:15:37.847Z"
locale: en
meta:
  description: "Niche score 53/100 · £820K/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 53/100 · £820K/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Products — nappies size 4 - Flapen"
---

# **nappies size 4**

**Worth a look**

Shows low returns (0.1%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.

Market size 74Growth 24Conversion 88Competition 36Returns 100Price range 75Avg price 86Brand share 0Review moat 25Quality gap 48

**Returns**

**Incredible****0.1%**

return rate — above 6% kills the launch gate

**Conversion**

**Great****10.4%**

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

**Avg price**

**Great****£19.45**

avg listing price — sweet spot $15–$100

**Price range**

**Great****£6.10–£41.62**

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

**Market size**

**Good****£820K**

£820K/yr · 407K searches

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Competition**

**Okay****63%**

top-5 click share — leaders hold, buyers still browse

**Review moat**

**Bad****4,333**

avg incumbent reviews — the moat a new listing must climb

**Growth**

**Bad****-1.5%**

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

**Brand share**

**Bad****100%**

top-5 brand share — brand-locked demand