Named "Best Gym Bags to Keep Your Training Goals In" by Gear Patrol in 2024.

WE’RE SERIOUS ABOUT OUR GEAR

PACK

Pack all your essentials. Fits gym clothes, supplements, lifting gear, and even your laptop.

LOAD

Designed to take a beating. Load up with confidence thanks to sturdy 500D nylon and heavy duty buckles.

CUSTOMIZE

Customize your internal configuration. Removable dividers allow you to add or remove compartments easily.

PACK
LOAD
CUSTOMIZE
bullet
Secure-zip outer pockets:

Keep snacks, keys, and other small personal items easily accessible.

bullet
All in one place:

External weightlifting belt attachment

bullet
Designated shoe compartment:

Keep sweaty footwear.

bullet
Easy to carry:

Padded straps for comfortable shoulder hold.

Simply Amazing.Eben C.

“The bag is great! Feels well-made and durable. Got the belt to go with it and it fits perfectly without giving up any extra space.”

Extremely durable.Arie K.

The pockets are designed intelligently and make for excellent organization. Works best when you pair with the dividers. Highly recommend this bag!

Even Better than Expected.Karter C.

The bag feels extremely well made. The pockets are well placed and I love the location of the shoe/used gym clothes slot on the side.

Lifetime investment

When it comes to durable, high-quality materials we don’t mess around. The Core Duffel is built to last and follow you on your lifting journey.

4.8
Rated 4.8 out of 5 stars
Based on 516 reviews
Total 5 star reviews: 445 Total 4 star reviews: 61 Total 3 star reviews: 4 Total 2 star reviews: 2 Total 1 star reviews: 4
98%would recommend this product
Slide 1 selected
516 reviews
  • VL
    Veronica L.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, Functional Circuit Training
    Using For: Gym Bag, Every Day Carry
    Rated 5 out of 5 stars
    Great buy!

    Bag was a gift for my Husband and he loved it. Good quality and spacious enough for all his gear.

  • JS
    John S.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, Functional Circuit Training
    Using For: Gym Bag, Sport / Fitness
    Rated 5 out of 5 stars
    Great Bag

    I love this bag and dividers! Worth the investment!

  • RA
    Raul A.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting
    Using For: Gym Bag
    Rated 4 out of 5 stars
    Core Duffel

    This is a great bag. It fits all my gym necessities. The zipper pulls on the main opening are amazing.

  • DW
    David w.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? CrossFit
    Using For: Gym Bag
    Rated 5 out of 5 stars
    Perfect

    Bought it for CrossFit gear. Carrries all I need.

  • JJ
    Jacqueline J.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, Other
    Using For: Gym Bag
    Rated 5 out of 5 stars
    Best Bag

    It's a strong and sturdy bag. It fits my 13mm 4in powerlifting belt in its belt sleeve, plus my stiff Inzers, shoes, tripod, etc. If you powerlift, I highly recommend.

Reviews LoadedReviews Added

FAQS

The main difference is the unique weightlifting belt attachment. This feature allows the bag be used as normal, while carrying a cumbersome lifting belt on the outside. Other changes are the volume (35L) and the layout.

Most of the materials are the same as used in other King Kong bags. YKK zippers, heavy duty buckles, nylon lining and webbing are all the same. In the CORE range, we have gone for a lighter 500D nylon outside and a new velcro logo feature that allows you to go 'incognito' with your own patches.

Measure the widest point of your belt and its length.

The CORE35 (medium) duffel can fit a belt up to 6.3"/16cm wide and 45.7"/116cm long.
The CORE51 (large) duffel can fit a belt up to 6.7"/17cm wide and 45.7"/116cm long.

A lever belt can fit, but you should count the lever into your measurement.

The CORE35 (Medium) will fit size 12 shoes. The CORE51 (Large) will fit size 15 shoes.