CORE Backpack Mini 13L
Athlete in gym wearing green mini size KNKG CORE Backpack
green mini size KNKG CORE Backpack sitting on wooden surface
Front view of green mini size KNKG CORE Backpack with matching lifting belt
Side profile of green mini size KNKG CORE Backpack
Close up of drink bottle pocket on green mini size KNKG CORE Backpack
Athlete reaching for pre-workout drink in green mini size KNKG CORE Backpack side pocket
Back view of green mini size KNKG CORE Backpack on wooden surface inside gym
Internal laptop sleeve inside green mini size KNKG CORE Backpack
CORE Backpack Mini 13L
Close up of front pocket inside green mini size KNKG CORE Backpack
Female athlete wearing green mini size KNKG CORE Backpack
Mini size backpack on female and male athletes. Side by side comparison.
Three views of a person wearing a green CORE backpack labeled 'Large', 'Medium', and 'Mini' against a dark background.
Three views of green mini size KNKG CORE Backpack on a person against a black background
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CORE Backpack Mini 13L

4.8
Rated 4.8 out of 5 stars
4.8 Stars (285 Reviews)
$80 $100
Size: Mini 13L
Mini 13L
Mini 13L
Medium 25L
Medium 25L
Color: Green
Black
Green
Natty
Desert
Limited Edition - Waxed Canvas:
Tan
Black
Camo
Traditional
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Matching Lifting Belt
Matching Lifting Belt
$50 $60
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Want the PRO version? Check out the new CORE PRO Backpack →

MINI BACKPACK WITH LIFTING BELT STORAGE

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 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 285 reviews
96%would recommend these products
Slide 1 selected
285 reviews
  • ML
    Michael L.
    Verified Buyer
    Reviewing
    CORE PRO Backpack Large 33L
    I recommend this product
    Rated 5 out of 5 stars
    Best Bag !!

    Over the years I’ve destroyed countless bags, I just couldn’t find a sturdy durable bag , but when I got my first KNKG bag I knew I found the right company for me. I was so impressed with the quality and durability that I’ve since purchased 3 bags and I just purchased my 4th, the Apex due to arrive this week. I don’t just use the bags for the gym I also us them for work and travel. When I find a brand I like I stick with it, you have a customer for life!!

    Was this helpful?
  • RB
    Russell B.
    Verified Buyer
    Reviewing
    CORE PRO Backpack Large 33L
    I recommend this product
    Rated 5 out of 5 stars
    Great Backpack

    One of my favorite things about the Core Pro is the belt loop. Also the shoe compartment at the bottom as well.

    Was this helpful?
  • MM
    mia m.
    Verified Buyer
    Reviewing
    CORE PRO Backpack Medium 25L
    I recommend this product
    Rated 5 out of 5 stars
    10/10!!!

    Purchased as a gift for my boyfriend! He has never heard of this brand prior. He’s now OBSESSED!!

    Was this helpful?
  • MM
    Matthew M.
    Verified Buyer
    Reviewing
    CORE Backpack Waxed Canvas Medium 25L
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting
    Using For: Every Day Carry
    Rated 4 out of 5 stars
    Great backpack!

    Love my new backpack. The only reason I'll give 4 stars instead of 5 is due to one of the leather pull tabs coming off of the bottom shoe compartment of the bag sometime the first week I had it. I found it in the back floorboard of my truck and was able to reattach it. Other than that, very happy!

    Was this helpful?
  • N
    Nick
    Reviewing
    CORE Backpack Medium 25L
    I recommend this product
    Rated 4 out of 5 stars
    4 Stars

    Nice bag, however the straps could be more comfortable and allow a size 13 shoe to fit in the shoe compartment

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