Karate Bag
Skip itWeak search conversion (1.0%) — this niche doesn't clear our bar today.
Avg price
Incredible$32.68avg listing price — sweet spot $15–$100
Price range
Great$12.76–$85.31cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Great29%top-5 click share — an open shelf
Brand share
Okay81%top-5 brand share — brands hold most of the demand
Returns
Okay4.7%return rate — above 5% kills the launch gate
Market size
Okay$108K$108K/yr · 330K searches
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad7,793.78avg incumbent reviews — the moat a new listing must climb
Growth
Bad-14.9%90-day search growth — must beat 0% to launch
Conversion
Bad1.0%search→purchase rate — share of searches ending in a sale
Is karate bag profitable on Amazon?
According to Flapen's Amazon United States niche tracking, karate bag is a $108K/yr Amazon United States market (330K searches/yr). The top 5 brands hold 81% of demand. Verdict: Skip it — 40/100.
Data updated Jul 11, 2026 · scored weekly · How we score niches
karate bag market size & sales
Units sold, revenue, conversion and listing quality across the tracked shelf.- Units sold / yr
- 3K–4K
- avg 0–100/product
- Revenue / yr
- $98K–$131K
- units × avg price
- Conversion rate
- 1.0%
- Avg BSR
- #453
- Page quality
- 0%
- Prime
- 94%
- Sponsored
- 59%
- Out of stock
- 4.2%
- Avg brand age
- 41 months
- Avg seller age
- 138 days
Competition: brands, sellers & click share
Clicks spread well past the top 5 (29% combined) — an open shelf where new products get seen.Brands
21 rising
Sellers
179
Top-5 brand share
81%
Top 20: 99%
Top-5 click share
29%
Top 20: 62%
Open market
16%
- Under Armour64%
- AAMA6%
- adidas5%
- Elite Sports4%
- HYKING3%
- BAGSMART3%
- Open — no brand owns it (15 brands, 16%)
karate bag demand & seasonality
Weekly Amazon search volume, last 62 weeks — -14.9% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Top karate bag search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.- under armour duffle bag71K/yr
- under armour bag53K/yr
- under armour gym bag35K/yr
- karate bag27K/yr
- taekwondo bag21K/yr
- martial arts bag15K/yr
- under armour duffel bag15K/yr
- gym bag under armour10K/yr
- under armour bags10K/yr
- bolso under armour6K/yr
Top karate bag 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
Under Armour Unisex-Adult Undeniable 5.0 Duffle Black (001)/Metallic Silver Medium
Under Armour$37.934.7★25,403 rev
Under Armour Unisex-Adult Undeniable 5.0 Duffle Pitch Gray Medium Heather (012)/Black Small
Under Armour$35.204.7★25,403 rev
Under Armour Unisex Hustle Sackpack (001) Black/Black/White One Size Fits Most
Under Armour$19.804.7★600 rev
AAMA Martial Arts Taekwondo Sparring Gear Equipment Bag - Red - Large
AAMA$49.134.5★139 rev
Under Armour Unisex-Adult Undeniable 5.0 Duffle Black (001)/Metallic Silver Small
Under Armour$32.384.7★25,403 rev
Newest
by launch date
Elite Sports Monster MMA Duffel Bag Large 44L Cordura Sports Bag w/Mesh Shoe Compartment & Adjustable Strap MMA BJJ Martial Arts Gear Fits Gi Headgear Shin Guards Rash Guards & More
Elite Sports$66.43101 rev
Under Armour Undeniable 5.0 Duffel XS Blue Smoke/Blue Smoke/Blue Calm
Under Armour$39.09103 rev
Under Armour Unisex Undeniable 5.0 Duffel Small Expedition Green/Black/Orange Base
Under Armour$38.1128 rev
Under Armour Unisex Hustle Sackpack (001) Black/Black/White One Size Fits Most
Under Armour$19.80600 rev
Under Armour Unisex Hustle Sport 6.0 Backpack (002) Black/Metallic Black One Size Fits Most
Under Armour$31.41592 rev
Trending
90-day click momentum
Under Armour Unisex Hustle Sport 6.0 Backpack (001) Black/Black/Metallic Silver One Size Fits Most
Under Armour$30.174.7★
Under Armour Unisex-Adult Undeniable 5.0 Duffle Midnight Navy (410)/Metallic Silver Small
Under Armour$35.394.7★
3 In 1 Tactical 30L Military Backpack Travel Duffle Bag for Weekender Gym Workout Deployment
HYKING$34.794.5★
Fitgriff Gym Bag for Men & Women with Shoe & Wet Compartment - Duffle Bag for Travel Sports Fitness & Workout (Full Black 19 x 10 x 10 (Small))
Fitgriff$35.004.7★
Under Armour Unisex-Adult Undeniable 5.0 Duffle (010) Black/Black/Black One Size Fits Most
Under Armour$41.864.7★
What reviews say buyers love and hate about karate bag
What buyers praise and complain about, mined from review topics.What buyers love
“Great bag fits everything”
“Decent quality”
“Lots of pockets”
“Durable and comfortable”
“Nice bag for any occasion or sports”
“good value”
“Big capacity”
“As advertised”
“Materials dont feel cheap”
“Great bag sturdy”
What buyers complain about
“Small bag”
“Low quality”
“Broke after minimal use”
“strap broke in 2 weeks”
“Zipper broke on the first day”
“Inside bag pocket/ pouch was ripped”
“Poor quality stitches”
“Chemical odor”
“waste of money”
“kinda flimsy”
Top return reasons
Common karate bag questions
- Is karate bag profitable to sell on Amazon United States?
- The niche generates $108K/yr across 63 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -14.9%. Flapen's verdict: Skip it (40/100).
- How competitive is the karate bag niche?
- 21 brands and 179 sellers compete. The top 5 products take 29% of clicks and top 5 brands hold 81% of demand.
- What do buyers complain about in karate bag?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Durability. The return rate is 4.7%.
- When does demand for karate bag peak?
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- What does it cost to enter the karate bag niche?
- Listings span $12.76–$85.31; the average listing price is $32.68 (sweet spot $15–$100). The average incumbent carries 7,794 reviews — the moat a new listing must climb.