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.

CORE Backpack Mini 13L

4.8
Rated 4.8 out of 5 stars
4.8 Stars (125 Reviews)
$99.95
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
$39.95 $59.95
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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

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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 125 reviews
Total 5 star reviews: 107 Total 4 star reviews: 13 Total 3 star reviews: 2 Total 2 star reviews: 1 Total 1 star reviews: 2
96%would recommend these products
Slide 1 selected
125 reviews
  • JS
    Jason S.
    Verified Buyer
    Reviewing
    CORE Backpack Waxed Canvas Medium 25L
    I recommend this product
    What type of training is your KNKG bag supporting you with? CrossFit, Functional Circuit Training, Other
    Using For: Gym Bag, Sport / Fitness, Every Day Carry, Work
    Rated 5 out of 5 stars
    The last bag

    My search for the perfect bag is officially over. After my last one completely busted—zippers and stitching coming apart—I knew I needed something built to last. I chose this one for the waxed canvas, and it's already proving to be a wise investment. The quality is truly outstanding, with thoughtful details like leather zipper pulls and a durable ripstop interior. The separate, internal shoe compartment is a huge bonus, keeping my gear organized and clean. Even when I've stuffed it to the brim, it still zips up easily. This feels like the last gym bag I'll ever need to buy.

    Was this helpful?
  • SK
    Steven K.
    Verified Buyer
    Reviewing
    CORE Backpack Medium 25L
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, Functional Circuit Training
    Using For: Gym Bag, Sport / Fitness
    Rated 5 out of 5 stars
    Greatest Gym Bags Ever

    Best bag ever! Get yours now!

    Was this helpful?
  • JJ
    Jack J.
    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, CrossFit, Fight & Combat Sports
    Using For: Gym Bag, Sport / Fitness
    Rated 5 out of 5 stars
    Perfect

    Exactly what I was looking for

    Was this helpful?
  • SB
    Silvia B.
    Verified Buyer
    Reviewing
    CORE Backpack Medium 25L
    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
    Even Fits My Leg Days

    Great bag, satisfied even when it’s leg day. Meaning I shove my lifting shoes in the lower compartment (women’s size 9) and thankfully they fit perfect. Even the belt slapped around the outside fits nice and I have a lever style belt and it actually stays. The two straps in the front hold it in well. Super satisfied. Green color is nice too. Hopefully bag will soften up, it is quite heavy and a little stiff but that just means it’s great quality.

    Was this helpful?
  • MN
    Michael N.
    Verified Buyer
    Reviewing
    CORE Backpack Medium 25L
    I recommend this product
    What type of training is your KNKG bag supporting you with? CrossFit
    Using For: Gym Bag, Sport / Fitness
    Rated 5 out of 5 stars
    Great CrossFit Workout Bag!!

    I love this bag it keeps all my stuff organized. From my grips to Nalgene bottle and drinks I carry and I have running and lifting shoes solve how I can keep one in the shoe compartment and ready when I need it!!It keeps everything accessible! The bag looks cool too which is a plus!! Highly recommend the CORE Backpack Medium 25L

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