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 (586 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 586 reviews
Total 5 star reviews: 504 Total 4 star reviews: 71 Total 3 star reviews: 5 Total 2 star reviews: 2 Total 1 star reviews: 4
98%would recommend this product
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586 reviews
  • MK
    Marc K.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting
    Using For: Work
    Rated 5 out of 5 stars
    Plenty of room

    I ordered the large and it’s more than I needed but I’ll just use the bag more often …… for work/travel.

    Was this helpful?
  • JR
    Jonathan R.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, Bodybuilding
    Using For: Gym Bag, Every Day Carry, Sport / Fitness
    Rated 5 out of 5 stars
    Best bag!

    Have been in the gym for nearly 30 years. Bags are a dime a dozen and last maybe 2 years tops! This bag keeps everything needed to safely lift and all desired items. Also its strong and durable worth the price! You pay for what you get!

    Was this helpful?
  • DH
    David H.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? Functional Circuit Training, CrossFit, Fight & Combat Sports
    Using For: Sport / Fitness, Gym Bag
    Rated 5 out of 5 stars
    Fantastic bag!

    This is hands down the best gym bag I've ever owned. Plenty of well designed packing space. The material of the bag is tough and the stitching is clean. I am super pleased.

    Was this helpful?
  • SP
    Sahil P.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting
    Using For: Gym Bag
    Rated 5 out of 5 stars
    Love this bag

    I hesistated for like a month straight on whether i was willing to pay the price for this bag, but I will say, it's freaking awesome and I am in love with it. It'll make you feel like a badass when you walk in and out the gym!

    Was this helpful?
  • DG
    DeShaun G.
    Verified Buyer
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, Bodybuilding, Fight & Combat Sports
    Using For: Gym Bag, Sport / Fitness
    Rated 5 out of 5 stars
    More Storage!!!

    This bag has utterly exceed my expectations. It’s beautiful, spacious, and I could immediately tell how much time and care went into making these bags. It’s one of the best gym purchases I’ve made for myself! And I got it with the dividers which just elevates the entire thing to a whole new level! You definitely have a loyal customer in me! I love it so much that I made a short review video!

    Slight nitpick: the KNKG label is slightly off-center.

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