---
title: "Kastking Backpack — $32K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/sports-outdoors/kastking-backpack"
last_updated: "2026-08-12T13:49:05.316Z"
locale: en
meta:
description: "Amazon product research for kastking backpack: $32K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for kastking backpack: $32K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Kastking Backpack — $32K/mo Amazon US Product Research"
---
# **Kastking Backpack**
**Worth a look**
Shows a sweet-spot price point ($50.54 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 55Growth 82Conversion 16Competition 87Returns 62Price range 62Avg price 93Brand share 22Review moat 59Quality gap 21
**Avg price**
**Great****$50.54**
avg listing price — sweet spot $15–$100
**Competition**
**Great****28%**
top-5 click share — an open shelf
**Growth**
**Great****+76.4%**
90-day search growth — must beat 0% to launch
**Returns**
**Good****2.5%**
return rate — above 5% kills the launch gate
**Price range**
**Good****$17.71–$151.28**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****1,150.08**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Good****$389K**
$389K/yr · 607K searches
**Brand share**
**Bad****91%**
top-5 brand share — brand-locked demand
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Bad****1.3%**
search→purchase rate — share of searches ending in a sale
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
## **Is kastking backpack profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, kastking backpack is a $389K/yr Amazon United States market (607K searches/yr). The top 5 brands hold 91% of demand. Verdict: Worth a look — 56/100.
Data updated Jul 23, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **kastking backpack market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **8K–10K**
- avg 100–250/product
- **Revenue / yr**
- **$404K–$505K**
- units × avg price
- **Conversion rate**
- **1.3%**
- **Avg BSR**
- **#34**
- **Page quality**
- **0%**
- **Prime**
- **98%**
- **Sponsored**
- **98%**
- **Out of stock**
- **0.4%**
- **Avg brand age**
- **38 months**
- **Avg seller age**
- **167 days**
## **Competition: brands, sellers & click share**
Clicks spread well past the top 5 (28% combined) — an open shelf where new products get seen.
**Brands**
**15 **▼falling
**Sellers**
**25**
**Top-5 brand share**
**91%**
Top 20: 100%
**Top-5 click share**
**28%**
Top 20: 67%
**Open market**
**6%**
- KastKing70% - PLUSINNO9% - Piscifun6% - Calamus3% - MATEIN3% - Rabjen3% - Open — no brand owns it (9 brands, 6%)
## **kastking backpack demand & seasonality**
Weekly Amazon search volume, last 12 weeks — +76.4% search growth over the last 90 days.
23K18KSpike '26May '26May '26May '26Jun '26Jun '26Jul '26
[**Open Trend **](https://flapen.com/research/us/sports-outdoors/kastking-backpack/trend)
## **Top kastking backpack search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **kastking backpack**146K/yr+87.1%1.4% conv. - **fishing backpack with rod holder**70K/yr+100.7%1.0% conv. - **tackle box bag**52K/yr+80.2%0.6% conv. - **waterproof fishing backpack**40K/yr+97.3%0.5% conv. - **tackle bag with trays included**35K/yr+58.0%0.5% conv. - **small fishing backpack**33K/yr+47.1%1.1% conv. - **fishing backpack with cooler**32K/yr+51.9%0.8% conv. - **tackle bags**31K/yr+40.0%0.3% conv. - **fishing tackle bags**20K/yr+39.4%0.6% conv. - **fish backpack**22K/yr+92.9%0.2% conv. [**All search terms **](https://flapen.com/research/us/sports-outdoors/kastking-backpack/search-terms)
## **Top kastking backpack 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.
0%2%$8K4%$16K6%$23K8%$31K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**KastKing BlowBak Tactical Sling Tackle Bag-Lightweight Fishing Backpack Storge Fishing Gear and Equipment Gift for Men**KastKing**$21.31**4.6★4,401 rev](https://www.amazon.com/dp/B08X6K53VX) [2**KastKing BaitSpace 50L Fishing Tackle Backpack with Removable Bait Binder & 4 Tackle Boxes 2 Rod Holders Storage Fishing Gear and Equipment Black Camo**KastKing**$85.10**4.7★203 rev](https://www.amazon.com/dp/B0DGLJ88LN) [3**KastKing BlowBak Tactical Sling Tackle Bag-Lightweight Fishing Backpack Storge Fishing Gear and Equipment Gift for Men**KastKing**$21.48**4.6★4,401 rev](https://www.amazon.com/dp/B08YF3WHFQ) [4**KastKing KarryAll Fishing Tackle Backpack with Rod Holder 4 Tackle Boxes 40/26L Tackle Bag Storage Fishing Gear and Equipment Black Medium**KastKing**$50.31**4.8★2,391 rev](https://www.amazon.com/dp/B0CQK5PC46) [5**KastKing KarryAll Fishing Tackle Backpack with Rod Holder 4 Tackle Boxes 40/26L Tackle Bag Storage Fishing Gear and Equipment Khaki Large**KastKing**$70.77**4.8★2,391 rev](https://www.amazon.com/dp/B0BKK2J776)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Calamus GearMaster Tackle Backpack with Bait Binder Large Lightweight Water-Resistant Fishing Bag Rod Holders Food Storage**Calamus**$72.81**43 rev8mo ago](https://www.amazon.com/dp/B0G1MNKX51) [**Calamus GearMaster Tackle Backpack with Bait Binder Large Lightweight Water-Resistant Fishing Bag Rod Holders Food Storage**Calamus**$88.14**43 rev8mo ago](https://www.amazon.com/dp/B0G1MQ7K55) [**KastKing BaitSpace 50L Fishing Tackle Backpack with Removable Bait Binder & 4 Tackle Boxes 2 Rod Holders Storage Fishing Gear and Equipment Black Camo**KastKing**$81.05**48 rev1y ago](https://www.amazon.com/dp/B0FD9L15RQ) [**KastKing KarryAll KastMate Fishing Tackle Backpack Water-Resistant Tackle Bag With 2 Rod Holders Fishing Gear and Equipment With Large Gear Storage Black**KastKing**$40.00**237 rev1y ago](https://www.amazon.com/dp/B0F2M22QQ2) [**KastKing BaitSpace 50L Fishing Tackle Backpack with Removable Bait Binder & 4 Tackle Boxes 2 Rod Holders Storage Fishing Gear and Equipment Black Camo**KastKing**$85.10**203 rev1y ago](https://www.amazon.com/dp/B0DGLJ88LN)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Calamus GearMaster Tackle Backpack with Bait Binder Large Lightweight Water-Resistant Fishing Bag Rod Holders Food Storage**Calamus**$72.81**4.5★**▲ 77%**](https://www.amazon.com/dp/B0G1MNKX51) [**KastKing BaitSpace Fishing Tackle Bag Water-resistant Tackle Storage with 2 Black Camo Tackle Boxes & Detachable Soft Bait Binder Adjustable Backpack for Bank Wading & Boat Fishing**KastKing**$41.48**4.7★**▲ 72%**](https://www.amazon.com/dp/B0DGLL73VR) [**Calamus GearMaster Tackle Backpack with Bait Binder Large Lightweight Water-Resistant Fishing Bag Rod Holders Food Storage**Calamus**$88.14**4.5★**▲ 68%**](https://www.amazon.com/dp/B0G1MQ7K55) [**KastKing BaitSpace 50L Fishing Tackle Backpack with Removable Bait Binder & 4 Tackle Boxes 2 Rod Holders Storage Fishing Gear and Equipment Black Camo**KastKing**$81.05**4.8★**▲ 58%**](https://www.amazon.com/dp/B0FD9L15RQ) [**KastKing Karryall Fishing Tackle Bags with 4 * 3600 Tackle Trays - Saltwater & Freshwater Fishing Gear Storage**KastKing**$49.64**4.8★**▲ 46%**](https://www.amazon.com/dp/B0CQN9D9WN)
**~~View all trending →~~**
## **What reviews say buyers love and hate about kastking backpack**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**15%
*“Excellent Product”*
**Size-Overall**12%
*“It was true to size”*
**Storage Capacity**11%
*“Very spacious”*
**Pockets/Compartments**10%
*“The pockets are great”*
**Value For Money**7%
*“Good investment”*
**Durability**5%
*“the material feels durable”*
**Material Quality**4%
*“Good material”*
**Advertised Vs Actual Product**4%
*“As advertised”*
**Ease Of Use**3%
*“Easy to use”*
**Portability**3%
*“Perfect for carrying with kids”*
### **What buyers complain about **
**Size-Overall**29%
*“Kinda small”*
**Advertised Vs Actual Product**6%
*“It's very misleading”*
**Quality-Overall**5%
*“Im incredibly disappointed in the quality of this bag”*
**Durability**4%
*“it completely falling apart”*
**Strap/String Quality**4%
*“Clip broke off on the carrying strap”*
**Zipper Quality**4%
*“bad zippers”*
**Value For Money**4%
*“Its a little pricey -”*
**Storage Capacity**2%
*“Capacity is crazy”*
**Weight Heavy**1%
*“Very big and bulky”*
**Portability**1%
*“This bag does not have a good place to carry either”*
### **Top return reasons **
**Size-Overall**67%
**Advertised Vs Actual Product**8%
**Zipper Quality**3%
**Strap/String Quality**3%
**Value For Money**3%
**Storage Capacity**3%
**Quality-Overall**2%
**Color**2%
**Pockets/Compartments**2%
**Material Quality**1%
## **Common kastking backpack questions**
- **Is kastking backpack profitable to sell on Amazon United States?**
- The niche generates $389K/yr across 65 tracked products. 9 of 9 products launched in the last 360 days are still selling. 90-day search growth is +76.4%. Flapen's verdict: Worth a look (56/100).
- **How competitive is the kastking backpack niche?**
- 15 brands and 25 sellers compete. The top 5 products take 28% of clicks and top 5 brands hold 91% of demand.
- **What do buyers complain about in kastking backpack?**
- Top complaints mined from reviews: Size-Overall, Advertised Vs Actual Product, Quality-Overall. The return rate is 2.5%.
- **What does it cost to enter the kastking backpack niche?**
- Listings span $17.71–$151.28; the average listing price is $50.54 (sweet spot $15–$100). The average incumbent carries 1,150 reviews — the moat a new listing must climb.
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