CORE Backpack Waxed Canvas Mini 13L

4.8
Rated 4.8 out of 5 stars
4.8 Stars (266 Reviews)
$160
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COMPACT WAXED CANVAS GYM BACKPACK. BUILT FOR TRAINING. MADE TO LAST.

WAXED. WEATHERED. UNCOMPROMISING.

The CORE Mini Backpack combines rugged heritage materials with compact, purpose-built storage for lighter training days and everyday carry.

Crafted from water-resistant Scottish waxed canvas, it is built to withstand hard use while developing a distinctive vintage patina over time. Every crease, scuff and mark adds character - making each backpack uniquely yours.

The external lifting belt attachment keeps your belt secure and out of the main compartment, leaving more room inside for your training essentials. Designed specifically to fit the KNKG Lifting Belt, it delivers smart, streamlined storage without unnecessary bulk.

Featuring:

  • Water-resistant Scottish waxed canvas by Halley Stevenson
  • Genuine cow leather logo patch and zipper pulls
  • External weightlifting belt attachment designed to fit the KNKG Lifting Belt
  • Internal iPad sleeve
  • Dual external bottle pockets
  • Compact 13L design for lighter carry days

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.

KNKG bags are built to go the distance. Every piece is engineered with quality materials, precision craftsmanship, and real-world testing - so you can pack it to the brim without worrying about rips or failure.

This version of the CORE Backpack features a waxed canvas body - an ultra-durable cotton canvas impregnated with wax for water resistance. Waxed canvas develops a rugged, lived-in look over time, with marks and creases that add to its character. It delivers the same proven longevity as our ballistic materials, with a vintage feel that gets better the harder you use it.

This CORE backpack is made from:
• Water-resistant Scottish waxed canvas from Halley Stevenson (cotton, waxed finish)
• Genuine Cow leather logo patch & zipper pulls
• YKK zippers
• Ripstop nylon lining
• Nylon webbing

NOT JUST DURABLE - DEPENDABLE

Built with a water-resistant waxed canvas shell, this limited edition CORE Duffel is crafted for those who aren't afraid to roll up their sleeves and get the work done. Every crease, mark, and scuff tells the story of work put in and limits pushed. No shortcuts. No excuses. Just a bag that shows up like you do.
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
0.9 kg / 2 lbs
23cm / 9.1"
38cm / 15"
18cm / 7.1"
Not recommended
iPad
KNKG Belt
MEDIUM
35 L / 9.2 GAL
1.2 kg / 2.6 lbs
28cm / 11"
45cm / 17.7"
28cm / 11"
Size 10
Up to 13"
6.3" (W) - 45.7" (L)
Capacity
Bag Weight
Height (H)
Width (W)
Depth (D)
Shoe Storage
Laptop Sleeve
Lifting Belt Size
MINI
15 L / 3.96 GAL
0.9 kg / 2 lbs
23cm / 9.1"
38cm / 15"
18cm / 7.1"
Not recommended
iPad
KNKG Belt
MEDIUM
35 L / 9.2 GAL
1.2 kg / 2.6 lbs
28cm / 11"
45cm / 17.7"
28cm / 11"
Size 10
Up to 13"
6.3" (W) - 45.7" (L)

BUILT TO GO THE DISTANCE

Waxed canvas isn’t just for looks. It’s a proven material trusted for over a century. Water-resistant, tough by nature, and built to age with character. This isn’t a trend piece. It’s a workhorse built for the grind.
4.8
Rated 4.8 out of 5 stars
Based on 266 reviews
Total 5 star reviews: 226
Total 4 star reviews: 30
Total 3 star reviews: 6
Total 2 star reviews: 2
Total 1 star reviews: 2
96%would recommend these products
Slide 1 selected
266 reviews
  • PD
    Pamela D.
    Verified Buyer
    Reviewing
    CORE Backpack Waxed Canvas Medium 25L
    I recommend this product
    What type of training is your KNKG bag supporting you with? Functional Circuit Training
    Using For: Every Day Carry, Work, Gym Bag
    Rated 5 out of 5 stars
    A Work of Art

    From the over the top unboxing experience to the insane quality of this bag, I've never felt so much joy receiving and using a backpack. It is completely fit for purpose and surprisingly comfortable. I can't describe how beautiful it is. Woodland camo, beautiful? Damn straight. This from someone who owns no other camo items at all. And probably never will. Nothing else would ever measure up. Thank you for making such an amazing product.

  • CP
    Corey P.
    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
    Rated 5 out of 5 stars
    Core backpack medium 25L

    Been a great bag so far. Fits everything that I need in it. I like the extra shoe compartment. Really love the durability of it.

  • GP
    Gary P.
    Verified Buyer
    Reviewing
    CORE Backpack Medium 25L
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, Other
    Using For: Gym Bag, Every Day Carry
    Rated 5 out of 5 stars
    Perfectly Beefy Bag

    I got my hands on this bag and instantly knew it was a top notch product. Immediately I could tell the materials used were intended to keep this bag going for a lifetime. Basically, nothing about this seems cheaply done or even meant to build a “quantity” type of item. Quality all the way and I will be recommending KNKG to anyone when an opportunity presents.

  • JH
    Justin H.
    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, Functional Circuit Training, Bodybuilding, CrossFit, Olympic Lifting
    Using For: Sport / Fitness, Gym Bag
    Rated 5 out of 5 stars
    I Was This Many Years Old When I Learned Backpacks Could Do This

    I loved my old gym duffel the way you love a golden retriever that sheds everywhere and knocks over lamps — deeply, unconditionally, and at growing cost to my shoulder. It held my shoes, clothes, belt, and forty pounds of “just in case,” but hauling it felt like rescuing a golden retriever from a well.

    Then the KNKG Core Backpack in waxed canvas walked into my life and I felt like someone finally told me the M&M’s go IN the popcorn. A revelation.

    This bag holds my size 12s in their own sealed shoe dungeon, a full change of clothes, and my lifting belt clipped smugly outside like it’s showing off. Enough pockets that my stopwatch, headphones, wallet, and keys have never once had an awkward run-in. It’s organized, handsome, and aging like it’s trying to win a rugged-but-emotionally-available contest. Same, bag. Same.

    I no longer carry forty pounds like I’m auditioning for strongman. I carry one gorgeous, capable backpack, and I genuinely could not tell you where my old duffel lives now. Attic? Witness protection? We don’t talk about it.

    Every day I pick this thing up and feel a small, ridiculous flutter of gratitude. 10/10. Would let it hold my belt again.

  • S
    Stephanie
    Reviewing
    CORE Backpack Waxed Canvas Medium 25L
    I recommend this product
    Rated 5 out of 5 stars
    5 Stars

    Good quality!

A Compact Waxed Canvas Gym Duffel

The KNKG CORE Mini Waxed Canvas Duffel combines the functionality of a compact gym bag with the timeless character of traditional Scottish waxed canvas. Designed for lighter training days, its 15L capacity gives your essential gym gear a dedicated place without the bulk of a full-size duffel.

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Scottish Waxed Canvas from Halley Stevensons

The outer shell is made using premium waxed canvas from Halley Stevensons, specialists in waxed and weather-resistant fabrics based at Baltic Works in Dundee, Scotland. The cotton canvas is treated with wax to create a durable, water-resistant surface built to handle daily commutes, regular gym sessions and changing weather.

Waxed canvas is designed to develop character over time. Creases, marks and tonal variations gradually create a distinctive patina, meaning every MINI Duffel will age differently. Rather than looking worn out, the material evolves with use and becomes uniquely yours.

Small Gym Bag. Full CORE Functionality.

The MINI is the smallest duffel in the KNKG CORE Collection. Its compact 15L design is made for athletes who prefer to carry only their essential training gear, such as lifting straps, wrist wraps, accessories, a small towel, headphones and an iPad.

An external weightlifting belt attachment helps preserve the limited internal space by allowing your lifting belt to be carried outside the main compartment. There is no dedicated shoe compartment, keeping the bag compact, lightweight and easy to carry.

Made for the Gym and Everyday Carry

With its compact shape and heritage-inspired waxed canvas finish, the MINI Duffel works beyond the gym. Use it as a small everyday duffel, accessory bag, work-to-gym carry option or compact travel bag when you do not need the capacity of a traditional gym duffel.

It delivers the recognisable durability and organisation of the CORE Collection in a smaller, more versatile format—built tough, packed smart and designed to look better with age.

CORE Mini Waxed Canvas Duffel Details

  • Capacity: 15L / 4 gal
  • Bag weight: 0.9 kg / 2 lb
  • Dimensions: 23 × 38 × 18 cm
  • Device storage: Internal iPad sleeve
  • Shoe storage: No dedicated shoe compartment
  • Belt storage: External weightlifting belt attachment
  • Outer material: Scottish waxed canvas from Halley Stevensons

Frequently Asked Questions

Is the MINI Waxed Canvas Duffel waterproof?

Waxed canvas is water-resistant rather than completely waterproof. The waxed finish helps protect the contents from light rain, splashes and everyday moisture, but the bag should not be submerged or exposed to heavy rain for extended periods.

What happens to waxed canvas over time?

Waxed canvas naturally develops creases, marks and colour variations as it is used. These changes create a distinctive patina and are part of the intended character of the material rather than signs of damage.

What can the 15L MINI Duffel hold?

The MINI is designed for a light gym setup containing smaller training essentials and accessories. It is best suited to athletes who do not need to carry bulky clothing, multiple outfits or shoes inside their gym bag.

Does the MINI Waxed Canvas Duffel have shoe storage?

No. The compact 15L MINI does not include a dedicated shoe compartment. Athletes who regularly carry training shoes should consider a larger KNKG CORE Duffel.

Can the MINI Duffel carry a weightlifting belt?

Yes. The external belt attachment is designed to carry a compatible weightlifting belt outside the main compartment, leaving more room inside the bag for your training essentials.