CORE Duffel
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CORE Duffel

Designed for weightlifters. Made for maxing.

4.8
Rated 4.8 out of 5 stars
4.8 Stars (548 Reviews)
Select Size: Medium - 35L
Select Color: Black
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Duffel Divider
Duffel Divider
$39.95 $49.95
Lifting Belt
Lifting Belt
$39.95 $59.95
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FREE US SHIPPING OVER $149Military & Emergency discountRush shipping available (US only)FREE FIRST RETURN
  • 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. This beefed up 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

CORE DUFFEL
SIZE COMPARISON

SMALL 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)

27.9cm / 11"

32cm / 12.6"

WIDTH (W)

45.7cm / 18"

50.8cm / 20"

DEPTH (D)

45.7cm / 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 548 reviews
Total 5 star reviews: 473 Total 4 star reviews: 64 Total 3 star reviews: 5 Total 2 star reviews: 2 Total 1 star reviews: 4
98%would recommend this product
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548 reviews
  • AH
    Ashlie H.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, Functional Circuit Training, Bodybuilding
    Using For: Gym Bag, Every Day Carry
    Rated 5 out of 5 stars
    Phenomenal Gym Bag

    I spent a lot of time researching different brands and styles of gym bags! I wanted a sturdy/quality material, quality zippers, shoe pocket that would fit size 13-14 US men's, specific space for a weightlifting belt, and dividers inside. This bag fit all of the requirements and the price point was the cherry on top! Highly recommend! Dividers are sold separately, but highly recommend - I liked the contrasting colors (black bag and tan dividers)

    Was this helpful?
  • JD
    Jorge D.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, Bodybuilding, CrossFit, Olympic Lifting
    Using For: Gym Bag
    Rated 5 out of 5 stars
    Very good bag

    For the amount of equipment and recovery tools I have, to be able to store it in one place has been magnificient

    Was this helpful?
  • DW
    Dan W.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? Other
    Using For: Sport / Fitness
    Rated 5 out of 5 stars
    Best Swim Bag

    I am bought this to replace my old swim bag. I do still use it for gym days which is great, but it is working out perfect for the pool too. My shorty fins fit perfectly in the slots for the weight belt on the sides, and the width is perfect for my rolled up towel. I am sure KNKG did not have swimming in mind when they designed this bag, but it works great. I also bought the dividers to use in the bag, though I do not use all 3 of them. It organizes my bag well and does not allow me to overpack, which is exactly what I needed. The quality of the bag is great and I love the way it looks.

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  • TB
    Tiffany B.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting
    Using For: Sport / Fitness, Gym Bag
    Rated 5 out of 5 stars
    Best gym bag

    I got this bag for my husband and it is the best gym bag by far. So many pockets for storage and it keeps its shape. We got the insert as well. Love the bag.

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  • AA
    AARON A.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, Bodybuilding
    Using For: Gym Bag, Sport / Fitness
    Rated 4 out of 5 stars
    Great Bag

    This bag is everything I wanted. Size and ability to be packed for whatever I am doing at the gym. I do wish that the box would work along with the dividers. And that ther was a little more expanse to the exterior pockets. Similar to the conquerer

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