roman helmet
Skip itSoft demand (-39.8% this quarter) — this niche doesn't clear our bar today.
Review moat
Great162.7avg incumbent reviews — the moat a new listing must climb
Avg price
Great$52.72avg listing price — sweet spot $15–$100
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Price range
Great$8.33–$119.85cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Good66%top-5 brand share — brands hold most of the demand
Competition
Good47%top-5 click share — leaders hold, buyers still browse
Market size
Okay$123K$123K/yr · 122K searches
Conversion
Bad1.9%search→purchase rate — share of searches ending in a sale
Returns
Bad7.0%return rate — above 6% kills the launch gate
Growth
Bad-39.8%90-day search growth — must beat 0% to launch
Competition
The top 5 products take 47% of clicks — established leaders, but buyers still shop beyond them.Brands
18 falling
Sellers
41
Top-5 brand share
66%
Open market
28%
- THOR INSTRUMENTS22%
- Cosmic Chameleon20%
- Nicky Bigs Novelties10%
- Servllcell8%
- ALADEAN7%
- NauticalMart6%
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 33 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Cosmic Chameleon Roman Spartan Warrior Helmet for Adults (Ages 15+) Gold Greek Soldier Headwear King Leonidas Style Medieval Armor Costume Accessory for Cosplay & Halloween
Cosmic Chameleon$19.794.3★355 rev
Nicky Bigs Novelties Roman Helmet Gladiator Helmet Spartan Helmets Knight Helmets Gladiator Costume Roman Soldier Costume Men
Nicky Bigs Novelties$23.624.4★608 rev
THOR INSTRUMENTS Gladiator Maximus Arena Helmet | Medieval Wearable Mens Helmet Full Size | Halloween Party Costumes | Larp Clothings Movie Dresses Full-Size Metal Gladiator Maximus Arena Helm
THOR INSTRUMENTS$72.474.2★158 rev
ALADEAN Roman Officer Helmet - Medieval Imperial Centurion Vintage Armor - 18g Mild Steel - LARP Cosplay Costume
ALADEAN$78.204.2★48 rev
Roman Officer Centurion Historical Helmet Armor 18g Steel Roman Helmet Rustic Vintage Home Decor Gifts
THOR INSTRUMENTS$79.144.3★263 rev
Newest
by launch date
Roman Helmet with Red Feather Plume Greek Costume Helmets Legion Helmet Gold Warrior
Jauarta$16.955 rev
Amlisia Roman Knight Helmet Spartan Gladiator Costume Helmet Plastic Medieval Hat Warrio Knight Armor Accessory with Red Feather for Men
Amlisia$22.2443 rev
Menolana Sparta Helmet Headwear Sparta Costume Accessory Fighter Helmet for Stage Decor Gift Cosplay Role Playing Gold with Feather
Menolana$8.333 rev
Servllcell Medieval Roman Knight Helmet Plastic Greek Spartan Gladiator Helmet Medieval Costume Accessories Halloween Hat
Servllcell$21.32126 rev
Medieval Roman Knight Helmet and Spartan Spear Prop Greek Spartan Gladiator Costume Accessories Set Halloween
Servllcell$35.7821 rev
Trending
90-day click momentum
THOR INSTRUMENTS Antique Replica Full-Size Roman Gladiator Fighter Visor Helmet Rustic Vintage Home Decor Gifts
THOR INSTRUMENTS$97.202.6★
Cosmic Chameleon Roman Spartan Warrior Helmet for Adults (Ages 15+) Silver Greek Soldier Headwear King Leonidas Style Medieval Armor Costume Accessory for Mens Cosplay & Halloween
Cosmic Chameleon$20.034.3★
NauticalMart Roman Gallic G Centurion Helmet - Metallic Armour
NauticalMart$119.853.8★
AnNafi Roman Soldier Helmet Red Plume Armor | Roman Helmet Adult | Metal Helm Centurion Gladiator Warrior Helmets Wearable Historical Replica Roman Helmet for Reenactment Collection & Stage Display
AnNafi$84.554.1★
Roman Helmet with Red Feather Plume Greek Costume Helmets Legion Helmet Gold Warrior
Jauarta$16.955.0★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -39.8% search growth over the last 90 days.Peak months: Mar, Apr, Oct · busiest ÷ quietest = 3.9×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“This is a very well-made historical piece with excellent craftsmanship”
“Great fit”
“its really affordable”
“not flimsy, looks just like illustration”
“Simple and effective”
“the durability of the helmet is adequate”
“Looks good though its plastic”
“Well crafted and visually appealing”
“Good plastic thickness”
“Just as described”
What buyers complain about
“Short”
“Not worth it”
“why mislead the customer”
“Broken in less than 5 minutes”
“Very flimsy”
“I saw a few rust spots which was disappointing”
“The face of it is bent to the point it can't be repaired”
“The bar which holds the fringe was too thick to fit into the holding sleeve”
“the straps do not make it any better”
“you should know its cheap as hell”