CORE Duffel Large 51L
Man wearing large neutral beige CORE Duffel in gym
Front view of large neutral beige CORE Duffel sitting on wooden box
Side view of large neutral beige CORE Duffel showing weight lifting belt stowed in dedicated sleeve
Side view of large neutral beige CORE Duffel sitting on wooden box
NOBULL sneakers inside large neutral beige CORE Duffel shoe compartment
Birds eye view of empty large neutral beige CORE Duffel, showing internal pockets and compartments
Birds eye view of large neutral beige CORE Duffel fully packed with workout gear, laptop, skipping rope and workout accessories
Birds eye view of internal divider system inside large neutral beige CORE Duffel, packed with shoes, bottles, workout clothes and fitness accessories
Flay lay of large neutral beige CORE Duffel surrounded by gym gear that fits inside bag
Man holding large neutral beige CORE Duffel by handles, standing against black brick wall
CORE Duffel Large 51L
Medium and large CORE Duffel stacked on top of each other, showing size difference
Side by side of large and medium CORE Duffel showing size difference
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CORE Duffel Large 51L

4.8
Rated 4.8 out of 5 stars
4.8 Stars (1,211 Reviews)
$180 $200
Size: Large 51L
Mini 15L
Mini 15L
Medium 35L
Medium 35L
Large 51L
Large 51L
Color: Natty
Black
Green
Natty
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Duffel Divider
Duffel Divider
$50 $50
Matching Lifting Belt
Matching Lifting Belt
$50 $60
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OUR BEST SELLING LARGE GYM DUFFEL

  • 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 guarantee to be free of defects in material or workmanship. If there is a defect in materials or workmanship KNKG will repair or replace your bag.

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
Capacity
Bag Weight
Height (H)
Width (W)
Depth (D)
Shoe Storage
Laptop Sleeve
Lifting Belt Size
MINI
15 L / 4 GAL
0.6 kg / 1.3 lbs
23cm / 9.1"
38cm / 15"
18cm / 7.1"
Not recommended
iPad
KNKG Belt
MEDIUM
35 L / 9.2 GAL
0.8 kg / 1.8 lbs
28cm / 11"
45cm / 17.7"
28cm / 11"
Size 10
Up to 13"
6.3" (W) - 45.7" (L)
LARGE
51 L / 13.4 GAL
1 kg / 2.2 lbs
32cm / 12.6"
50.8cm / 20"
32cm / 12.6"
Size 13
Up to 15"
6.7" (W) - 51.5" (L)
Capacity
Bag Weight
Height (H)
Width (W)
Depth (D)
Shoe Storage
Laptop Sleeve
Lifting Belt Size
MINI
15 L / 3.96 GAL
0.6 kg / 1.3 lbs
23cm / 9.1"
38cm / 15"
18cm / 7.1"
Not recommended
iPad
KNKG Belt
MEDIUM
35 L / 9.2 GAL
0.8 kg / 1.8 lbs
28cm / 11"
45cm / 17.7"
28cm / 11"
Size 10
Up to 13"
6.3" (W) - 45.7" (L)
LARGE
51 L / 13.4 GAL
1 kg / 2.2 lbs
32cm / 12.6"
50.8cm / 20"
32cm / 12.6"
Size 13
Up to 15"
6.7" (W) - 51.5" (L)

Designed for weightlifting.

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.

This is the best gym bag for powerlifters. Many amazing features that set this bag apart from its rivals. The outer material is tough, durable, and lightweight while also being water resistant and easy to clean.

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.
4.8
Rated 4.8 out of 5 stars
Based on 1,211 reviews
Total 5 star reviews: 1.1k
Total 4 star reviews: 111
Total 3 star reviews: 13
Total 2 star reviews: 5
Total 1 star reviews: 12
98%would recommend these products
Slide 1 selected
1,211 reviews
  • L
    Lawrence
    Reviewing
    CORE PRO Duffel Large 51L
    I recommend this product
    Rated 5 out of 5 stars
    5 Stars

    Its perfect but noe i want to purchase rhr dividers to go inside thr bag!

    Was this helpful?
  • C
    Chip
    Reviewing
    CORE PRO Duffel Small 25L
    I recommend this product
    Rated 5 out of 5 stars
    5 Stars

    I’ve had the original 45L charcoal duffel for over 10years and it served me well…through crossfit and powerlifting gym equipment, shoes, bands, etcs. Now that im older and do more old school regular lifting and cardio i dont need near as large a bag for “stuff”.

    Is $180 a lot for a duffel bag? Yes, but dangit Im 42 and deserve nice things and this is THE top shelf gym bag. Loved this color so much, the size is absolutely perfect, not too big or small…so I pulled the trigger and glad I did. Packaging was like opening a Christmas present in the 80s and seeing Santa brought me a Nintendo. I’m excited to stroll into gym tomorrow with it. Great job KNKG!

    Was this helpful?
  • KB
    Kristopher B.
    Verified Buyer
    Reviewing
    CORE Duffel Mini 15L
    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
    Perfect gym bag

    Its got everything you need to carry kit around the weightroom in a compact formfactor. It really doesnt get better than this.

    The quality of these bags is peak tier, zippers are great, material is of a high quality and respectable build. The thought and planning into the functionality of this bag is excellent.

    Was this helpful?
  • T
    Tom
    Reviewing
    CORE Duffel Waxed Canvas Mini 15L
    I recommend this product
    Rated 5 out of 5 stars
    5 Stars

    WELL made product!! Heavier than I was expecting, but cant wait for it to get broken in.

    Was this helpful?
  • SE
    Sharon E. T.
    Verified Buyer
    Reviewing
    CORE PRO Duffel Medium 35L
    I recommend this product
    Rated 5 out of 5 stars
    Built tough with Excellent Functionality

    The KNKG Core Pro Duffle Medium 35L is tough, rugged, and clearly made to last. The build quality feels excellent, and the thoughtful design provides awesome functionality and organization. It’s a durable, well-designed bag that can handle hard use while keeping everything organized. Versatile for the gym or travel. Highly recommended!

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