king costume kids
Worth a lookShows beatable incumbent ratings (4.0★), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Quality gap
Great4.0★avg incumbent rating — lower means beatable quality
Brand share
Great45%top-5 brand share — no brand owns this niche
Review moat
Great235.55avg incumbent reviews — the moat a new listing must climb
Competition
Great33%top-5 click share — an open shelf
Price range
Great£5.45–£55.00cheapest to priciest tracked listing — scored on the share inside $15–$100
Avg price
Good£13.64avg listing price — sweet spot $15–$100
Conversion
Good5.3%search→purchase rate — share of searches ending in a sale
Returns
Okay3.8%return rate — above 5% kills the launch gate
Market size
Bad£58K£58K/yr · 80K searches
Growth
Bad-34.0%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, king costume kids is a £58K/yr Amazon United Kingdom market (80K searches/yr). The top 5 brands hold 45% of demand. Demand peaks in Mar–Nov–Dec. Verdict: Worth a look — 56/100.
Data updated Jul 29, 2026 · scored weekly · How we score niches
king costume kids market data
- Units sold / yr
- 3K–3K
- avg 0–100/product
- Revenue / yr
- £34K–£41K
- units × avg price
- Conversion rate
- 5.3%
- Avg BSR
- #1,230
- Page quality
- 0%
- Prime
- 98%
- Sponsored
- 83%
- Out of stock
- 9.7%
- Avg brand age
- 43 months
- Avg seller age
- 201 days
Competition & brand share
Clicks spread well past the top 5 (33% combined) — an open shelf where new products get seen.Brands
34 rising
Sellers
66
Top-5 brand share
45%
Top 20: 90%
Top-5 click share
33%
Top 20: 76%
Open market
49%
- TSHAOUN11%
- AOOWU9%
- Smiffys9%
- jerbro9%
- HPMAISON7%
- Wicked Costumes6%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -34.0% search growth over the last 90 days.Peak months: Mar, Nov, Dec · busiest ÷ quietest = 7.0×
Top king costume kids search terms
- king costume kids28K/yr
- king costume23K/yr
- kids king costume11K/yr
- king costume adult8K/yr
- king outfit5K/yr
- king of hearts costume5K/yr
Top king 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
TSHAOUN King Costume Set Prince Cloak and Prince Crown 2 Pcs Set for Princes Role Play Halloween Princes Costume Nativity Costumes Stage Performance One Size 80cm (Red)
TSHAOUN£6.664.3★604 rev
HPMAISON Set 3 King Fancy Dress Crown + 42CM Sceptre + 90CM Red Cape Set Prince Costume Tiara Royal Outfits Headwear Cosplay Birthday Party Halloween Role Play
HPMAISON£12.204.2★35 rev
Wicked Costumes Boys Medieval King Fancy Dress Costume Royal Prince Knight Outfit for World Book Day School Plays Halloween & Parties - Large (8-10 Years)
Wicked Costumes£12.784.5★688 rev
AOOWU Kids King Costume with Cape and Crown Prince & Queen Cape Cloak Coat with Detachable Crown Unisex Cloak Medieval Costume for Halloween Christmas World Book Day Birthday Party One Size (80cm)
AOOWU£5.454.1★512 rev
Smiffys King Arthur Medieval Costume Red with Tunic Cape & Crown Boys Fancy Dress Child Dress Up Costumes
Smiffys£13.024.6★2,412 rev
Newest
by launch date
1 PC Royal Crown Chain Brooch Golden Crown Lapel Pin with Double Chain for Birthday Role Play Party
xoqoiuo£11.074 rev
Binmiza King Costume Set 90cm King Queen Costume Set Red Cow Pattern Cloak with Golden Cloth Crown for Nativity Halloween Stage Performance
Binmiza£5.971 rev
GSrenyu 3 Pcs King Costume Set for Kids
GSrenyu£9.8419 rev
Adults King Costume Set 3Pcs Royal King Queen Costume Red Cow Pattern Cloak 120cm with Tie + Adjustable Crown with Hook-and-Loop Closure + Elastic White Gloves Halloween Party Cosplay Stage Outfit
WanderGo£8.366 rev
Enjoyaa 2 Pcs King Costume Set - Wise Man Nativity King Costume with Crown & Cape Role Play Robe Christmas Nativity Play Halloween Coronation & Birthday Dress Up (red)
Enjoyaa£7.131 rev
Trending
90-day click momentumBinmiza King Costume Set 90cm King Queen Costume Set Red Cow Pattern Cloak with Golden Cloth Crown for Nativity Halloween Stage Performance
Binmiza£5.975.0★
GSrenyu 3 Pcs King Costume Set for Kids
GSrenyu£9.843.9★
Regenboog King Costume for Men and Women - Metal Crown Adult Green Cape Scepter Brooch Queen Outfit Halloween Lord Farquaad XL
Regenboog£22.594.5★
Enjoyaa 2 Pcs King Costume Set - Wise Man Nativity King Costume with Crown & Cape Role Play Robe Christmas Nativity Play Halloween Coronation & Birthday Dress Up (red)
Enjoyaa£7.131.0★
jerbro 3pcs Royal King Robe Queen Velvet Coat Costume + King Queen Crown + Scepter for Women Men Halloween Adult Theme Party Theatre Fancy Dress Cosplay Carnival Fancy Dress (Blue 49.2in/125cm)
jerbro£11.333.9★
What buyers say about king costume kids
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality and the description was accurate”
“perfect fit”
“Good value for money”
“When it has arrived it is nicer than the photo”
“Nice to use once”
“Great for imaginative play”
“Adaptable for different body shapes”
“Great present or fancy dres”
“Sturdy and perfect fit”
“And well designed”
What buyers complain about
“Doesn't fit an average adult man”
“Not the greatest of quality the gloves are close to the body scrubbing glove you get in the pound shop”
“other sellers have it cheaper”
“Material wasnt great”
“Really bad, the crown broke instantly as soon as it came out of the box and the cape broke within 15 minutes of being worn”
“The septor was flimsy”
“It doesn't show from the front because of this”
Top return reasons
Common questions
- Is king costume kids profitable to sell on Amazon United Kingdom?
- The niche generates £58K/yr across 47 tracked products. 0 of 12 products launched in the last 360 days are still selling. 90-day search growth is -34.0%. Flapen's verdict: Worth a look (56/100).
- How competitive is the king costume kids niche?
- 34 brands and 66 sellers compete. The top 5 products take 33% of clicks and top 5 brands hold 45% of demand.
- What do buyers complain about in king costume kids?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Value For Money. The return rate is 3.8%.
- When does demand for king costume kids peak?
- Demand peaks in Mar–Nov–Dec; the busiest month runs 7.0× the quietest.
- What does it cost to enter the king costume kids niche?
- Listings span £5.45–£55.00; the average listing price is £13.64 (sweet spot $15–$100). The average incumbent carries 236 reviews — the moat a new listing must climb.