---
title: "Reviews — duo costumes for best friends"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/duo-costumes-for-best-friends/reviews"
last_updated: "2026-08-12T06:17:39.431Z"
locale: en
meta:
  description: "Amazon product research for duo costumes for best friends: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
  "og:description": "Amazon product research for duo costumes for best friends: demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
  "og:title": "Reviews — duo costumes for best friends"
---

# **Duo Costumes for Best Friends**

**Skip it**

Weak search conversion (0.1%) — this niche doesn't clear our bar today.

Market size 3Growth 42Conversion 1Competition 73Returns 10Price range 89Avg price 95Brand share 88Review moat 79Quality gap 57

**Avg price**

**Incredible****$32.06**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$8.76–$96.96**

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

**Brand share**

**Great****47%**

top-5 brand share — no brand owns this niche

**Review moat**

**Great****419.27**

avg incumbent reviews — the moat a new listing must climb

**Competition**

**Good****41%**

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

**Quality gap**

**Good****4.4★**

avg incumbent rating — lower means beatable quality

**Growth**

**Okay****+13.2%**

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

**Returns**

**Bad****9.3%**

return rate — above 5% kills the launch gate

**Market size**

**Bad****$12K**

$12K/yr · 547K searches

**Conversion**

**Bad****0.1%**

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

**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")

## Reviews