CORE Duffel
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CORE Duffel

4.8
Rated 4.8 out of 5 stars
4.8 Stars (664 Reviews)
Select Size: Medium - 35L
Select Color: Desert
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Duffel Divider
Duffel Divider
$39.95 $49.95
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Lifting Belt
$39.95 $59.95
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  • External weightlifting belt attachment
  • 13/15” Internal laptop sleeve
  • Sealed internal shoe compartment
  • Dual bottle pockets 

Do you even lift? If so, meet your new favorite lifting partner. Say goodbye to your belt taking up precious space in your bag, with this unique and specially designed lifting belt attachment that ensures functionality isn’t compromised whatsoever. The CORE Duffel is made to store everything you need and support you every time you step into the gym.

(Lifting belt sold separately)

Covered by our promise to be free of defects in material or workmanship within its practical lifetime. If there is a defect in materials or workmanship KNKG will repair or replace your bag, including free shipping.

Our bags are meticulously designed to stand up to the test of time. We utilize durable materials, coupled with top-notch craftsmanship and rigorous testing, resulting in the toughest bags in the game. You can confidently pack your bag to its maximum capacity without worrying about it stretching or tearing.

The CORE Duffel is made from:

  • 500D nylon body material (PVC backing)
  • YKK zippers
  • Powder-coated steel buckles
  • Ripstop nylon lining
  • Nylon webbing
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CORE DUFFEL
SIZE COMPARISON
MEDIUM DUFFEL LARGE DUFFEL
Capacity 35 L / 9.2 GAL 51 L / 13.4 GAL
Bag Weight 0.8 kg / 1.8 lbs 1 kg / 2.2 lbs
Height (H) 28cm / 11" 32cm / 12.6"
Width (W) 45cm / 17.7" 50.8cm / 20"
Depth (D) 28cm / 11" 32cm / 12.6"
Shoe Storage Size 10 Size 13
Laptop Sleeve Up to 13" Up to 15"
Lifting Belt Size 6.3" (W) - 45.7" (L) 6.7" (W) - 51.5" (L)

Designed for weightlifting.

With max support comes max gains.

Get the support you need, every time you step into the gym. With the unique external weightlifting belt attachment, you'll never have to waste space inside your gym bag again.

Made for maxing.

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 KNKG 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 10 shoes. The CORE51 (Large) will fit size 13 shoes. Larger shoe sizes will fit our PLUS Duffel.

Workouts are tough but these bags are tougher. Effortless to carry and palpably robust. This thing does it all and measures in at the perfect size.

Designed for serious lifters who crave serious organization.

4.8
Rated 4.8 out of 5 stars
Based on 664 reviews
Total 5 star reviews: 576 Total 4 star reviews: 76 Total 3 star reviews: 6 Total 2 star reviews: 2 Total 1 star reviews: 4
98%would recommend this product
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664 reviews
  • J
    Justin
    I recommend this product
    Rated 5 out of 5 stars
    5 Stars

    This bag is awesome. Perfect size with all kinds of storage space.

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  • WS
    Winston S.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting
    Using For: Gym Bag, Work
    Rated 5 out of 5 stars
    Love this bag!

    I loved my Core Duffel so much that I bought a second one!

    Was this helpful?
  • SM
    Shane M.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, Bodybuilding
    Using For: Gym Bag
    Rated 5 out of 5 stars
    Awesome Bag

    The bag fits my needs perfectly. I am able to get all my gear in it and organized. I upgraded to this bag because I wanted to be able to get multiple pairs of shoes in the bag. I am also enjoying having my belt out of the way by having strapped to the outside.

    Was this helpful?
  • LB
    Laura B.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, Bodybuilding
    Using For: Sport / Fitness, Gym Bag
    Rated 5 out of 5 stars
    51L Core Duffel

    This bag is amazing. It’s too big to be a “gym” bag which is what I was looking for but it’s a great travel duffel which I also needed. I’m in contest prep atm and I have been able to fit a weeks worth of clothes, body scale, cosmetics kit, extra shoes and more all into 1 bag. May buy another one for my wife. This bag may outlast us if primarily used for weekend travel vs daily use.

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  • KC
    Kevin C.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? Bodybuilding, Functional Circuit Training
    Using For: Gym Bag
    Rated 5 out of 5 stars
    Great gym bag!

    High quality gym back that meets all your needs for gym gear, clothes, etc. when getting the morning pre-work gym time in. Highly recommend!

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