KNKG mini black CORE Duffel being worn over shoulder
Person holding KNKG mini black CORE Duffel by grab handle
Person holding KNKG mini black CORE Duffel in hand by handle
KNKG mini black CORE Duffel sitting on wooden box in gym
Lifting belt compartment on KNKG mini black CORE Duffel
Close up of lifting belt inside sleeves of KNKG mini black CORE Duffel
side pocket view of KNKG mini black CORE Duffel
Bottle pocket close up of KNKG mini black CORE Duffel
Front pocket on KNKG mini black CORE Duffel packed with brown leather wallet
Birds eye view empty internal of KNKG mini black CORE Duffel
External pockets of KNKG mini black CORE Duffel
Packed internal, birds eye view of KNKG mini black CORE Duffel
Wallet in pocket of KNKG mini black CORE Duffel
Person packing KNKG mini black CORE Duffel with a supplement container and water bottle inside.
Man holding green bags labeled 'Large', 'Medium', and 'Mini' against a black brick wall.
Mini size duffel being worn by male and female athlete in gym
Person wearing KNKG mini black CORE Duffel over shoulder against a black brick wall.
Man wearing KNKG mini black CORE Duffel over his shoulder
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CORE Duffel Mini 15L

4.8
Rated 4.8 out of 5 stars
4.8 Stars (850 Reviews)
$88 $110
Size: Mini 15L
Mini 15L
Mini 15L
Medium 35L
Medium 35L
Large 51L
Large 51L
Color: Black
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Desert
Black
Black
Green
Green
Natty
Natty
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Matching Lifting Belt
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THE TOUGHEST COMPACT GYM DUFFEL YOU'LL EVER MEET

Built for packing light. Our best selling CORE bags - compact in size yet loaded with function. 

The perfect gym floor bag without the bulk. Designed with a dedicated lifting belt sleeve, drink bottle holder, and multiple secure compartments.

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
• 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)

SAME STRENGTH, SAME FUNCTIONALITY, NEW COMPACT SIZE

Built for packing light - without sacrificing our signature external weightlifting belt attachment.

FAQS

The CORE Mini Duffel is specifically designed to fit the KNKG weight belt. We don’t recommend using it with other belt brands. If you’re using a different belt, we suggest upsizing to the MEDIUM or LARGE CORE Duffel instead.

No - we don't recommend the mini size for shoe storage. If you're packing shoes we recommend checking out the medium or large size duffel.
4.8
Rated 4.8 out of 5 stars
Based on 850 reviews
Total 5 star reviews: 743 Total 4 star reviews: 84 Total 3 star reviews: 8 Total 2 star reviews: 3 Total 1 star reviews: 12
97%would recommend these products
Slide 1 selected
850 reviews
  • MO
    Michael O.
    Verified Buyer
    Reviewing
    CORE Duffel Medium 35L
    I recommend this product
    What type of training is your KNKG bag supporting you with? None - I don't use my bag for training, Weightlifting
    Using For: Gym Bag
    Rated 5 out of 5 stars
    Carries what I need +

    Carries my gym gear and also doubles as an overnight bag.

    Was this helpful?
  • NP
    Nicholas P.
    Verified Buyer
    Reviewing
    CORE Duffel Waxed Canvas Medium 35L
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, Functional Circuit Training
    Using For: Gym Bag
    Rated 5 out of 5 stars
    Worth Every Penny

    Great bag. Spacious and high quality. Will be getting my next bag from here!

    Was this helpful?
  • RT
    Rajhans T.
    Verified Buyer
    Reviewing
    CORE Duffel Medium 35L
    I recommend this product
    What type of training is your KNKG bag supporting you with? Functional Circuit Training
    Using For: Sport / Fitness
    Rated 5 out of 5 stars
    KNKG Core Duffel: A 10/10 Recommendation

    The KNKG Core Duffel is an absolute game-changer for my daily routine. Its 35-liter capacity is the perfect sweet spot, effortlessly holding all my gym gear and work essentials without being bulky. The organization is brilliant, with dedicated pockets that keep everything accessible and secure. This bag's rugged construction and sleek, professional look make it the only bag I need to grab on my way out the door.

    Was this helpful?
  • DP
    Deandre P.
    Verified Buyer
    Reviewing
    CORE Duffel Mini 15L
    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
    Solid bag

    It does everything I need it to do

    Was this helpful?
  • CW
    Christopher W.
    Verified Buyer
    Reviewing
    CORE Duffel Large 51L
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, CrossFit, Functional Circuit Training, Other
    Using For: Sport / Fitness, Gym Bag
    Rated 5 out of 5 stars
    Sturdiest bag I have ever owned

    I am hard on bags. I have a timbuk2 bag that I have loved, but I have outgrown it. I could not use a backpack, so I needed a tough roomy duffle. The Core duffel more than delivered.

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