KNKG Mini CORE Backpack in Black being worn by female athlete inside gym
KNKG Mini CORE Backpack in Black being worn by male athlete inside gym
KNKG Mini CORE Backpack in Black sitting on wooden box inside gym
KNKG Mini CORE Backpack in Black sitting on box with matching weightlifting belt
Back view of KNKG Mini CORE Backpack in Black
Side profile view of KNKG Mini CORE Backpack in Black
Person reaching for FITAID inside drink bottle pocket of KNKG Mini CORE Backpack in Black
Inside view of preworkout inside KNKG Mini CORE Backpack in Black
Laptop sleeve inside KNKG Mini CORE Backpack in Black
Front pocket of KNKG Mini CORE Backpack in Black
Athlete wearing KNKG Mini CORE Backpack in Black with lifting belt wrapped around bag
Male & Female Athlete wearing mini CORE Backpack
Three views of a person wearing a green backpack labeled 'Large', 'Medium', and 'Mini' against a dark background.
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CORE Backpack Mini 13L

4.8
Rated 4.8 out of 5 stars
4.8 Stars (162 Reviews)
$80 $100
Size: Mini 13L
Mini 13L
Mini 13L
Medium 25L
Medium 25L
Large 33L
Large 33L
Color: Black
Black
Black
Green
Green
Natty
Natty
Desert
Desert
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Matching Lifting Belt
Matching Lifting Belt
$40 $60
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MINI SIZE. MAXIMUM ORGANIZATION.

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 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
• Ripstop nylon lining
• Nylon webbing

​
CORE BACKPACK
SIZE COMPARISON
Capacity
Bag Weight
Height (H)
Width (W)
Depth (D)
Shoe Storage
Laptop Sleeve
MINI
13 L / 3.4 GAL
0.8 kg / 1.8 lbs
35cm / 13.8"
25cm / 9.8"
15cm / 5.9"
Not recommended
iPad
MEDIUM
25 L / 6.6 GAL
1 kg / 2.2 lbs
50.8cm / 20"
30.5cm / 12"
17cm / 6.7"
Up to size 10
Up to 16"
LARGE
33 L / 8.7 GAL
1.1 kg / 2.4 lbs
53.3cm / 21"
31cm / 12.2"
20.1cm / 7.9"
Up to size 13
Up to 16"
Capacity
Bag Weight
Height (H)
Width (W)
Depth (D)
Shoe Storage
Laptop Sleeve
MINI
13 L / 3.4 GAL
0.8 kg / 1.8 lbs
35cm / 13.8"
25cm / 9.8"
15cm / 5.9"
Not recommended
iPad
MEDIUM
25 L / 6.6 GAL
1 kg / 2.2 lbs
50.8cm / 20"
30.5cm / 12"
17cm / 6.7"
Up to size 10
Up to 16"
LARGE
33 L / 8.7 GAL
1.1 kg / 2.4 lbs
53.3cm / 21"
31cm / 12.2"
20.1cm / 7.9"
Up to size 13
Up to 16"

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 162 reviews
Total 5 star reviews: 139 Total 4 star reviews: 18 Total 3 star reviews: 2 Total 2 star reviews: 1 Total 1 star reviews: 2
97%would recommend these products
Slide 1 selected
162 reviews
  • JP
    Janet P.
    Verified Buyer
    Reviewing
    CORE Backpack Mini 13L
    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
    The best backpack

    I love this bag because it is compact but there are many compartments and plenty of space for all of your gym essential needs.

    Was this helpful?
  • SK
    Steven K. M.
    Verified Buyer
    Reviewing
    CORE Backpack Large 33L
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, Bodybuilding
    Using For: Gym Bag, Sport / Fitness
    Rated 5 out of 5 stars
    Great Backpack

    I bought this backpack to replace my gym bag. I can't get used to it for my morning workouts. I am buying their gym bag for the mornings so I can bring everything and using the backpack when I go in the afternoon.

    Was this helpful?
  • MW
    Michael W.
    Verified Buyer
    Reviewing
    CORE Backpack Mini 13L
    I recommend this product
    What type of training is your KNKG bag supporting you with? None - I don't use my bag for training
    Using For: Every Day Carry
    Rated 5 out of 5 stars
    Built Like a Tank, Perfect for My Boys

    Each of my boys has one of these mini Core backpacks, and they’ve been perfect for daily use and travel. The build quality is rock solid—feels like it could survive a hurricane—and the layout is incredibly practical with plenty of pockets. The color is sharp, the fit is great, and it looks even better in person. This thing isn’t just a backpack—it’s a long-term investment that’ll outlast their childhood adventures. Ow we all have one.

    Was this helpful?
  • JL
    Jon L.
    Verified Buyer
    Reviewing
    CORE Backpack Mini 13L
    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
    Mini Backpack

    Great sturdy backpack! Perfect size for the gym floor.

    Was this helpful?
  • C
    Connor
    Reviewing
    CORE Backpack Large 33L
    I recommend this product
    Rated 5 out of 5 stars
    5 Stars

    This backpack is huge as advertised. I am able to fit all of my school and sports gear instead of carrying multipe backpacks. If you have a packed schedule and need to keep all your gear with you and organized this backpack is meant for you.

    Was this helpful?
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