---
title: "Captain America Costume Kids — £34K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/fashion/captain-america-costume-kids"
last_updated: "2026-07-31T15:19:03.006Z"
locale: en
meta:
description: "Niche score 36/100 · £34K/yr market · 102K searches/yr · £16.43 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 36/100 · £34K/yr market · 102K searches/yr · £16.43 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Captain America Costume Kids — £34K/yr Amazon UK Niche (2026) - Flapen"
---
# **captain america costume kids**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 9Growth 1Conversion 26Competition 67Returns 64Price range 80Avg price 79Brand share 0Review moat 61Quality gap 43
**Price range**
**Great****£9.59–£37.92**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****£16.43**
avg listing price — sweet spot $15–$100
**Competition**
**Good****45%**
top-5 click share — leaders hold, buyers still browse
**Returns**
**Good****2.4%**
return rate — above 5% kills the launch gate
**Review moat**
**Good****1,067.97**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Okay****2.1%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****£34K**
£34K/yr · 102K searches
**Growth**
**Bad****-47.1%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, captain america costume kids is a £34K/yr Amazon United Kingdom market (102K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Mar–Oct–Nov–Dec. Verdict: Skip it — 36/100.
Data updated Jul 23, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **captain america costume kids market data**
- **Units sold / yr**
- **2K–2K**
- avg 0–100/product
- **Revenue / yr**
- **£25K–£33K**
- units × avg price
- **Conversion rate**
- **2.1%**
- **Avg BSR**
- **#795**
- **Page quality**
- **0%**
- **Prime**
- **83%**
- **Sponsored**
- **50%**
- **Out of stock**
- **7.7%**
- **Avg brand age**
- **43 months**
- **Avg seller age**
- **182 days**
## **Competition & brand share**
The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**2 **▼falling
**Sellers**
**34**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**45%**
Top 20: 91%
**Open market**
**0%**
- Marvel54% - Rubies46% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 84 weeks — -47.1% search growth over the last 90 days.
9K7KSpike '25Prime Day '25Spike '26 seasonJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Mar, Oct, Nov, Dec · busiest ÷ quietest = 4.5×
[**Open Trend **](https://flapen.com/research/uk/fashion/captain-america-costume-kids/trend)
## **Top captain america costume kids 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%3%£1K6%£2K9%£3K12%£4K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Marvel Boys Avengers Swimsuit Captain America Costume Rash Guard Multicoloured 4-5 Years**Marvel**£13.50**4.7★1,702 rev](https://www.amazon.co.uk/dp/B06WP6YYV7) [2**Marvel Boys Short Pyjamas Captain America Blue 4-5 Years**Marvel**£12.87**4.7★891 rev](https://www.amazon.co.uk/dp/B07PJKJZF9) [3**Marvel Boys Avengers Swimsuit Captain America Costume Rash Guard Multicoloured 2-3 Years**Marvel**£13.15**4.7★1,702 rev](https://www.amazon.co.uk/dp/B06VWMDKPZ) [4**Marvel Boys Short Pyjamas Captain America Blue 11-12 Years**Marvel**£11.25**4.7★891 rev](https://www.amazon.co.uk/dp/B07PKQBPVS) [5**Rubies Official Marvel Spidey and His Amazing Friends Captain America Deluxe Toddler Kids Superhero Fancy Dress Age 3-4 Years**Rubies**£18.20**4.0★18 rev](https://www.amazon.co.uk/dp/B0GMJ9KDY1)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Rubies Official Marvel Spidey and His Amazing Friends Captain America Deluxe Toddler Kids Superhero Fancy Dress Age 3-4 Years**Rubies**£18.20**18 rev5mo ago](https://www.amazon.co.uk/dp/B0GMJ9KDY1) [**Marvel Pyjamas Avengers Boys Pyjamas Thor Captain America Hulk And Iron Man Summer Pjs For Boys Black 5-6 Years**Marvel**£11.22**86 rev1y ago](https://www.amazon.co.uk/dp/B0FDKZ54D9) [**Rubies Official Marvel Captain America Dress Up Set Child Costume Kids Fancy Dress Size Ages 4-6 Years Halloween**Rubies**£15.59**25 rev1y ago](https://www.amazon.co.uk/dp/B0DNR3R6Q4) [**Rubies Captain America Deluxe Boys/Girl Costume with Padded Chest Boot Cover and Mask Official Marvel Costume 7-8 Years (122-128cm) Halloween Halloween**Rubies**£25.64**309 rev2y ago](https://www.amazon.co.uk/dp/B0C8HXV8HT) [**Rubies 301736M Captain America Deluxe Kids Fancy Dress Boys Multicolour 9-10 Years Halloween**Rubies**£23.80**309 rev2y ago](https://www.amazon.co.uk/dp/B0C8HQZ6S1)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Marvel Boys Short Pyjamas Captain America Blue 8-9 Years**Marvel**£13.06**4.7★**▲ 185%**](https://www.amazon.co.uk/dp/B07PLHGYKD) [**Marvel Boys Short Pyjamas Captain America Blue 2-3 Years**Marvel**£13.14**4.7★**▲ 181%**](https://www.amazon.co.uk/dp/B07PLFN1ZJ) [**Marvel Boys Short Pyjamas Captain America Blue 11-12 Years**Marvel**£11.25**4.7★**▲ 175%**](https://www.amazon.co.uk/dp/B07PKQBPVS) [**Rubies Official Marvel Spidey and His Amazing Friends Captain America Deluxe Toddler Kids Superhero Fancy Dress Age 3-4 Years**Rubies**£18.20**4.0★**▲ 167%**](https://www.amazon.co.uk/dp/B0GMJ9KDY1) [**Marvel Boys Short Pyjamas Captain America Blue 4-5 Years**Marvel**£12.87**4.7★**▲ 161%**](https://www.amazon.co.uk/dp/B07PJKJZF9)
**~~View all trending →~~**
## **What buyers say about captain america costume kids**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**35%
*“Good quality toy”*
**Size-Overall**21%
*“it was a perfect size”*
**Fun/Entertainment Experience**13%
*“Nice toy”*
**Value For Money**6%
*“The actual costume is amazing and great value”*
**Soft Feel**4%
*“Nice soft material”*
**Stitch/Finish/Polish**4%
*“The stitching is fine”*
**Drop/Impact Protection**3%
*“Good shield”*
**Advertised Vs Actual Product**2%
*“Matches the description”*
**Ease Of Use**1%
*“Its also simple to put on and take off, which is always helpful for younger kids”*
**Color**1%
*“The costume has a bright”*
### **What buyers complain about **
**Quality-Overall**21%
*“The helmet and the shield are not as high quality,”*
**Material Quality**19%
*“Cheap and nasty the mask is badly made with cheap materials the shield is a flimsy bit of material, could have used a cheap bit of card, at least it would be better”*
**Advertised Vs Actual Product**13%
*“Nothing i can find in listing stating this”*
**Size-Overall**13%
*“Bad sizing”*
**Comfort-Overall**6%
*“It isn't luxurious”*
**Value For Money**6%
*“Not worth the money”*
**Durability**4%
*“poor quality and questionable longevity”*
### **Top return reasons **
**Size-Overall**77%
**Quality-Overall**6%
**Material Quality**5%
**Product Condition**3%
**Advertised Vs Actual Product**2%
**Scratch Resistance**2%
**Stitch/Finish/Polish**1%
**Strap/String Quality**1%
**Defective Material/Parts**1%
**Value For Money**1%
## **Common questions**
- **Is captain america costume kids profitable to sell on Amazon United Kingdom?**
- The niche generates £34K/yr across 30 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -47.1%. Flapen's verdict: Skip it (36/100).
- **How competitive is the captain america costume kids niche?**
- 2 brands and 34 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in captain america costume kids?**
- Top complaints mined from reviews: Quality-Overall, Material Quality, Advertised Vs Actual Product. The return rate is 2.4%.
- **When does demand for captain america costume kids peak?**
- Demand peaks in Mar–Oct–Nov–Dec; the busiest month runs 4.5× the quietest.
- **What does it cost to enter the captain america costume kids niche?**
- Listings span £9.59–£37.92; the average listing price is £16.43 (sweet spot $15–$100). The average incumbent carries 1,068 reviews — the moat a new listing must climb.
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