Knight Costume
Worth a lookShows a sweet-spot price point ($33.25 avg), but weak search conversion (0.5%) keeps it on the watch list.
Avg price
Incredible$33.25avg listing price — sweet spot $15–$100
Competition
Great31%top-5 click share — an open shelf
Brand share
Great53%top-5 brand share — no brand owns this niche
Review moat
Great351.24avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Price range
Good$16.87–$131.48cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Okay$183K$183K/yr · 1000K searches
Growth
Okay+8.9%90-day search growth — must beat 0% to launch
Returns
Bad8.5%return rate — above 5% kills the launch gate
Conversion
Bad0.5%search→purchase rate — share of searches ending in a sale
Is knight costume profitable on Amazon?
According to Flapen's Amazon United States niche tracking, knight costume is a $183K/yr Amazon United States market (1000K searches/yr). The top 5 brands hold 53% of demand. Demand peaks in Sep–Oct. Verdict: Worth a look — 54/100.
Data updated Jul 10, 2026 · scored weekly · How we score niches
knight costume market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 8K–10K
- avg 0–100/product
- Revenue / yr
- $266K–$333K
- units × avg price
- Conversion rate
- 0.5%
- Avg BSR
- #564
- Page quality
- 0%
- Prime
- 96%
- Sponsored
- 84%
- Out of stock
- 5.7%
- Avg brand age
- 42 months
- Avg seller age
- 187 days
Competition: brands, sellers & click share
Clicks spread well past the top 5 (31% combined) — an open shelf where new products get seen.Brands
31 falling
Sellers
69
Top-5 brand share
53%
Top 20: 94%
Top-5 click share
31%
Top 20: 66%
Open market
40%
- Missanabie15%
- JEMITOP12%
- California Costumes11%
- Irtysh9%
- UQJE7%
- ALAMIYA7%
knight costume demand & seasonality
Weekly Amazon search volume, last 104 weeks — +8.9% search growth over the last 90 days.Peak months: Sep, Oct · busiest ÷ quietest = 11.4×
Top knight costume search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- knight costume345K/yr
- knight costume kids160K/yr
- knight costume men153K/yr
- knight costume for boys69K/yr
- kids knight costume41K/yr
- medieval knight costume30K/yr
- mens knight costume27K/yr
- medieval knight costume men25K/yr
- boys knight costume26K/yr
- knight outfit9K/yr
Top knight costume products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.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
Missanabie Mens Medieval Renaissance Knight LARP Outfit Pirate Cosplay Robe Halloween Viking Costume Accessories Set(BK S)
Missanabie$32.393.8★17 rev
Renaissance Faux Chain Mail Armor Tunic Shirt Coif Medieval Knight Cowl Crusader Costume Outfit Bracers Waist Belt Set(L) Silver Gray
Irtysh$36.033.7★201 rev
Medieval Knight Leather Belt Shawl Men Renaissance Half Shoulder Cape Scarf Sword Frog Buckle Bracers Retro Magic Cork Potion Bottle Accessories(Type11)
ALAMIYA$42.344.3★2,553 rev
8 Pcs Mens Renaissance Costume Halloween Medieval Pirate Shirt Pant Viking Costume Accessories Set (Classic Color Medium)
Vanderdyken$47.254.3★647 rev
California Costumes Knights Surcoat Adult Costume (Red) Large/X-Large
California Costumes$34.544.2★205 rev
Newest
by launch date
JEMITOP Mens Renaissance Cotton Lace Up Shirt Mandarin Collar Long Sleeve Retro Costume for Medieval Pirate Viking Halloween Knight Vampire Without Belt Black L
JEMITOP$23.6824 rev
JEMITOP Mens Pirate Renaissance Cotton Arm Banded Shirt Retro Long Sleeve Lace Up Costume for Medieval Viking Knight Halloween Cosplay Without Belt Black L
JEMITOP$25.9211 rev
JEMITOP Mens Renaissance Cotton Lace Up Shirt Mandarin Collar Long Sleeve Retro Costume for Medieval Pirate Viking Halloween Knight Vampire Without Belt Army Green L
JEMITOP$23.5924 rev
JEMITOP Mens Renaissance Cotton Lace Up Shirt Mandarin Collar Long Sleeve Retro Costume for Medieval Pirate Viking Halloween Knight Vampire Without Belt Navy Blue L
JEMITOP$23.0424 rev
Missanabie Mens Medieval Renaissance Knight LARP Outfit Pirate Cosplay Robe Halloween Viking Costume Accessories Set(BK S)
Missanabie$32.3917 rev
Trending
90-day click momentumJEMITOP Mens Renaissance Cotton Lace Up Shirt Mandarin Collar Long Sleeve Retro Costume for Medieval Pirate Viking Halloween Knight Vampire Without Belt Black L
JEMITOP$23.684.6★
JEMITOP Mens Pirate Renaissance Cotton Arm Banded Shirt Retro Long Sleeve Lace Up Costume for Medieval Viking Knight Halloween Cosplay Without Belt Black L
JEMITOP$25.924.8★
JEMITOP Mens Renaissance Cotton Lace Up Shirt Mandarin Collar Long Sleeve Retro Costume for Medieval Pirate Viking Halloween Knight Vampire Without Belt Army Green L
JEMITOP$23.594.6★
JEMITOP Mens Renaissance Cotton Lace Up Shirt Mandarin Collar Long Sleeve Retro Costume for Medieval Pirate Viking Halloween Knight Vampire Without Belt Navy Blue L
JEMITOP$23.044.6★
JEMITOP Mens Renaissance Pure Cotton Lace Up Shirt V-Neck Long Sleeve Retro Costume for Medieval Pirate Viking Knight Vampire Halloween Black L
JEMITOP$19.784.6★
What reviews say buyers love and hate about knight costume
What buyers praise and complain about, mined from review topics.What buyers love
“The fit is true to size”
“The quality has been great considering my three year old is pretty rough”
“comfortable”
“Worth the price”
“Fun set”
“Material is light weight and is comfortable”
“they seem durable enough”
“lightweight shield”
“Christmas present”
“Husband loves the fit and the style”
What buyers complain about
“Too small”
“The overall quality is moderate”
“Cheap and awkward straps”
“seems ready to break”
“Cheap made plastic”
“does not match the photos entirely”
“It is heavy though”
“Sword and Shield Bleeds Color Everywhere”
“Feels and smells like tinsel”
“The material is not warm or stretchy”
Top return reasons
Common knight costume questions
- Is knight costume profitable to sell on Amazon United States?
- The niche generates $183K/yr across 68 tracked products. 0 of 18 products launched in the last 360 days are still selling. 90-day search growth is +8.9%. Flapen's verdict: Worth a look (54/100).
- How competitive is the knight costume niche?
- 31 brands and 69 sellers compete. The top 5 products take 31% of clicks and top 5 brands hold 53% of demand.
- What do buyers complain about in knight costume?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Strap/String Quality. The return rate is 8.5% — above our launch gate.
- When does demand for knight costume peak?
- Demand peaks in Sep–Oct; the busiest month runs 11.4× the quietest.
- What does it cost to enter the knight costume niche?
- Listings span $16.87–$131.48; the average listing price is $33.25 (sweet spot $15–$100). The average incumbent carries 351 reviews — the moat a new listing must climb.