samurai insoles ninjas
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Avg price
Incredible$28.12avg listing price — sweet spot $15–$100
Price range
Incredible$17.61–$34.81cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Conversion
Good5.8%search→purchase rate — share of searches ending in a sale
Returns
Okay3.1%return rate — above 5% kills the launch gate
Growth
Okay+9.5%90-day search growth — must beat 0% to launch
Market size
Okay$153K$153K/yr · 94K searches
Review moat
Bad24,798.8avg incumbent reviews — the moat a new listing must climb
Competition
Bad100%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, samurai insoles ninjas is a $153K/yr Amazon United States market (94K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 40/100.
Data updated Jul 20, 2026 · scored weekly · How we score niches
samurai insoles ninjas market data
- Units sold / yr
- 4K–5K
- avg 750–1,000/product
- Revenue / yr
- $112K–$141K
- units × avg price
- Conversion rate
- 5.8%
- Avg BSR
- #77
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 40%
- Out of stock
- 0.0%
- Avg brand age
- 55 months
- Avg seller age
- 168 days
Competition & brand share
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.Brands
4 flat
Sellers
8
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
100%
Top 20: 100%
Open market
0%
- Samurai Insoles85%
- WALK·HERO COMFORT AND SUPPORT7%
- Fit Geno6%
- Psveb2%
Demand & seasonality
Weekly Amazon search volume, last 103 weeks — +9.5% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.2×
Top samurai insoles ninjas search terms
- samurai insoles ninjas plantar fasciitis relief35K/yr
- samurai insoles ninjas45K/yr
- samurai insoles11K/yr
- ninja insoles3K/yr
Top samurai insoles ninjas 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 5 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Samurai Insoles Ninjas Plantar Fasciitis Relief Insoles - Podiatrist Designed Orthotic Lab Made in the USA Arch Support Shoe Insert for Mens 10-10.5 or Womens 12-12.5
Samurai Insoles$34.813.8★24,214 rev
Samurai Insoles Ninjas Plantar Fasciitis Relief Insoles - Podiatrist Designed Orthotic Lab Made in the USA Arch Support Shoe Insert for Mens 6-6.5 or Womens 8-8.5
Samurai Insoles$34.543.8★24,214 rev
Plantar Fasciitis Relief - Arch Support Insoles for Men Women Shoe Inserts for Flat Feet Orthotics Insoles All-Day Energy and Comfort with Every Step (Mens 11-11 1/2 | Womens 13-13 1/2)
WALK·HERO COMFORT AND SUPPORT$17.614.3★74,733 rev
Arch Support Plantar Fasciitis Insoles: (Womens 12-13 / Mens 10-11)
Fit Geno$29.494.5★18 rev
Professional Heavy Duty Support Pain Relief Orthotics - Over 230+ lbs Plantar Fasciitis Medium Arch Support Insoles for Women and Men Flat Feet Orthotic Insert Work Boot Shoe Insole
Psveb$24.164.5★815 rev
Newest
by launch dateProfessional Heavy Duty Support Pain Relief Orthotics - Over 230+ lbs Plantar Fasciitis Medium Arch Support Insoles for Women and Men Flat Feet Orthotic Insert Work Boot Shoe Insole
Psveb$24.16815 rev
Arch Support Plantar Fasciitis Insoles: (Womens 12-13 / Mens 10-11)
Fit Geno$29.4918 rev
Samurai Insoles Ninjas Plantar Fasciitis Relief Insoles - Podiatrist Designed Orthotic Lab Made in the USA Arch Support Shoe Insert for Mens 6-6.5 or Womens 8-8.5
Samurai Insoles$34.5424,214 rev
Samurai Insoles Ninjas Plantar Fasciitis Relief Insoles - Podiatrist Designed Orthotic Lab Made in the USA Arch Support Shoe Insert for Mens 10-10.5 or Womens 12-12.5
Samurai Insoles$34.8124,214 rev
Plantar Fasciitis Relief - Arch Support Insoles for Men Women Shoe Inserts for Flat Feet Orthotics Insoles All-Day Energy and Comfort with Every Step (Mens 11-11 1/2 | Womens 13-13 1/2)
WALK·HERO COMFORT AND SUPPORT$17.6174,733 rev
Trending
90-day click momentumProfessional Heavy Duty Support Pain Relief Orthotics - Over 230+ lbs Plantar Fasciitis Medium Arch Support Insoles for Women and Men Flat Feet Orthotic Insert Work Boot Shoe Insole
Psveb$24.164.5★
Arch Support Plantar Fasciitis Insoles: (Womens 12-13 / Mens 10-11)
Fit Geno$29.494.5★
Plantar Fasciitis Relief - Arch Support Insoles for Men Women Shoe Inserts for Flat Feet Orthotics Insoles All-Day Energy and Comfort with Every Step (Mens 11-11 1/2 | Womens 13-13 1/2)
WALK·HERO COMFORT AND SUPPORT$17.614.3★
Samurai Insoles Ninjas Plantar Fasciitis Relief Insoles - Podiatrist Designed Orthotic Lab Made in the USA Arch Support Shoe Insert for Mens 6-6.5 or Womens 8-8.5
Samurai Insoles$34.543.8★
Samurai Insoles Ninjas Plantar Fasciitis Relief Insoles - Podiatrist Designed Orthotic Lab Made in the USA Arch Support Shoe Insert for Mens 10-10.5 or Womens 12-12.5
Samurai Insoles$34.813.8★
What buyers say about samurai insoles ninjas
What buyers praise and complain about, mined from review topics.What buyers love
“Comfortable and Supportive”
“Overall build quality seems excellent”
“Fit great”
“Good Value”
“Great pain relief trust this”
“Easy to use”
“Instant relief of my heel pain”
“Excellent Support for Flat Feet”
“Reliable/Durable”
“Works great”
What buyers complain about
“caused my knees to suffer”
“The inserts are so cheaply made”
“Not worth it”
“Too hard”
“dont have any thickness by your toes”
“Poor Performance”
“it didn't help my plantar fascitis at all”
“they have absolutely no cushioning for the ball of the foot”
“Takes a few days to break in”
“I need more arch support”
Top return reasons
Common questions
- Is samurai insoles ninjas profitable to sell on Amazon United States?
- The niche generates $153K/yr across 5 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +9.5%. Flapen's verdict: Skip it (40/100).
- How competitive is the samurai insoles ninjas niche?
- 4 brands and 8 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in samurai insoles ninjas?
- Top complaints mined from reviews: Pain Relief-Overall, Quality-Overall, Value For Money. The return rate is 3.1%.
- When does demand for samurai insoles ninjas peak?
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- What does it cost to enter the samurai insoles ninjas niche?
- Listings span $17.61–$34.81; the average listing price is $28.12 (sweet spot $15–$100). The average incumbent carries 24,799 reviews — the moat a new listing must climb.