Current buyer's guide
King Kong Gym Bag: Best Current KNKG Replacement
Originally published · Updated September 2026
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The Original King Kong Bag 3.0 is discontinued
Quick answer: If you came here looking for the Original King Kong Bag 3.0, the closest current replacement is the KNKG CORE Duffel Medium 35L. It keeps the heavy-duty gym focus, adds external lifting-belt storage, and includes separate shoe storage, bottle pockets, and a laptop sleeve.
See the current KNKG CORE Duffel →
Which current KNKG bag should you buy?
Best replacement for most people
CORE Duffel Medium 35L
Best for: Daily gym use, shoes, wraps, knee sleeves, a change of clothes, and a lifting belt.
The 35L model measures about 17.7 by 11 by 11 inches. It uses a 500D nylon body, YKK zippers, ripstop lining, two bottle pockets, a sealed shoe compartment, a laptop sleeve, and an external belt attachment.
Watch for: The shoe compartment is listed for shoes up to men's size 10. Larger shoes or bulky travel loads point toward the 51L version.
Check the CORE 35L →Best compact upgrade
CORE PRO Small 25L
Best for: Athletes who carry daily essentials and want a smaller bag with upgraded hardware.
The 25L CORE PRO adds magnetic belt-sleeve closures, a heavier shoulder strap, reinforced webbing, a larger patch panel, shoe storage up to men's size 10, and a 14-inch laptop sleeve.
Watch for: It costs more while holding less than the standard CORE 35L. Pay for the upgraded construction only if the smaller footprint matters.
Check the CORE PRO 25L →Best for large shoes and travel
CORE Duffel Large 51L
Best for: Size 11-13 shoes, two-a-day training, bulky equipment, or weekend travel.
The 51L version expands to about 20 by 12.6 by 12.6 inches, fits shoes up to men's size 13, and carries a laptop up to 15 inches.
Watch for: It is substantially larger than most people need for a normal gym session.
Check the CORE 51L →Old King Kong Bag 3.0 vs. current CORE 35L
The newer CORE is not an exact reissue. It is smaller and uses lighter body fabric, but its layout is more purpose-built for a modern lifting setup. The external belt holder is the main reason to choose it over a generic duffel.
Is a KNKG bag worth the price?
It makes economic sense when you routinely carry shoes, a belt, sleeves, wraps, bottles, and clothing and want those items separated. It is harder to justify if your normal load is only shoes, a towel, and a water bottle; an inexpensive duffel can handle that job.
The strongest buying case is organization plus longevity, not the logo. KNKG currently states a 25-year warranty against defects in materials or workmanship. That warranty does not eliminate normal wear, so confirm the current terms before buying.
Our verdict
For the person who wanted the Original King Kong Bag 3.0, buy the CORE Duffel Medium 35L. It is the most balanced current replacement for daily strength and functional-fitness gear. Move up to the 51L only for larger shoes or genuinely bulky loads; choose the CORE PRO 25L when compact size and upgraded hardware justify the higher price.
See the recommended CORE Duffel →