---
title: "Reviews — mermaid costume kids - Flapen"
canonical_url: "https://flapen.com/research/uk/fashion/mermaid-costume-kids/reviews"
last_updated: "2026-07-31T22:50:32.841Z"
locale: en
meta:
  description: "Niche score 45/100 · £64K/yr market · 311K searches/yr · £11.88 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 45/100 · £64K/yr market · 311K searches/yr · £11.88 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Reviews — mermaid costume kids - Flapen"
---

# **mermaid costume kids**

**Skip it**

Soft demand (-27.0% this quarter) — this niche doesn't clear our bar today.

Market size 16Growth 12Conversion 22Competition 67Returns 51Price range 65Avg price 49Brand share 66Review moat 85Quality gap 70

**Review moat**

**Great****306.07**

avg incumbent reviews — the moat a new listing must climb

**Quality gap**

**Good****4.3★**

avg incumbent rating — lower means beatable quality

**Competition**

**Good****45%**

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

**Brand share**

**Good****65%**

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

**Price range**

**Good****£7.13–£29.58**

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

**Returns**

**Good****3.0%**

return rate — above 5% kills the launch gate

**Avg price**

**Okay****£11.88**

avg listing price — sweet spot $15–$100

**Conversion**

**Bad****1.7%**

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

**Market size**

**Bad****£64K**

£64K/yr · 311K searches

**Growth**

**Bad****-27.0%**

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

**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=uk&signal=no_dominant_brand "Top brand's click share < 20%")