CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L
CORE Duffel Waxed Canvas Medium 35L

CORE Duffel Waxed Canvas Medium 35L

4.8
Rated 4.8 out of 5 stars
4.8 Stars (712 Reviews)
Size: Medium 35L
Mini 15L
Mini 15L
Medium 35L
Medium 35L
Large 51L
Large 51L
Color:
Black
Black
Natty
Natty
Green
Green
Desert
Desert
Limited Edition - Waxed Canvas: Camo
Camo
Camo
Traditional
Traditional
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WAXED. WEATHERED. UNCOMPROMISING.

The CORE Duffel is built tough - with a water-resistant waxed canvas exterior inspired by the rugged, resilient spirit of the West. Over time, waxed canvas develops a vintage look, picking up the marks of your journey and building character with every use.

The unique external belt attachment keeps your lifting belt secure on the outside, freeing up valuable space inside the bag. With smart storage throughout, it’s made to back you through training, travel, and everything in between.

Featuring:

  • Water-resistant Scottish waxed canvas from Halley Stevenson.
  • Genuine Cow leather logo patch and zipper pulls.
  • External weightlifting belt attachment.
  • 13” internal laptop sleeve.
  • Sealed internal shoe compartment.
  • Dual bottle pockets. 
  • Packed in a sturdy keepsake box - perfect for gifting.
  • Genuine leather wallet & keyring included - Limited time only.

(Lifting belt sold separately)

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.

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

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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.

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.
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)
PACKAGED WITH PURPOSE
This isn't your average unboxing. Our limited edition Waxed Canvas Collection comes packaged in a premium keepsake box - making it the perfect gift or collector’s piece. For a limited time only, each set includes a genuine leather wallet and keyring.

FAQS

The main difference is the unique external weightlifting belt attachment - letting you carry your belt on the outside without sacrificing internal space. This version also features a 35L capacity and a reworked layout for streamlined storage. It's built from waxed canvas, a water-resistant cotton material that develops a rugged, vintage look with use - making it as tough as it is timeless.

Measure the widest point of your belt and its length. The CORE35 (medium) duffel can fit a belt up to 6.3"/16cm wide and 45.7"/116cm long.

A lever belt can fit, but you should count the lever into your measurement.

The CORE35 (Medium) will fit size 10 shoes.
4.8
Rated 4.8 out of 5 stars
Based on 712 reviews
Total 5 star reviews: 614 Total 4 star reviews: 77 Total 3 star reviews: 7 Total 2 star reviews: 3 Total 1 star reviews: 11
97%would recommend these products
Slide 1 selected
712 reviews
  • AC
    Anthony C.
    Verified Buyer
    Reviewing
    CORE Duffel Medium 35L
    I recommend this product
    What type of training is your KNKG bag supporting you with? CrossFit, Weightlifting
    Using For: Gym Bag, Work, Sport / Fitness
    Rated 5 out of 5 stars
    Stunned

    This bag is an absolute beast!!! I plan on adding another to my collection

    Was this helpful?
  • KW
    Krista W.
    Verified Buyer
    Reviewing
    CORE Duffel Medium 35L
    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, heavy duty

    Love the size and rigid structure

    Was this helpful?
  • MJ
    Michael J.
    Verified Buyer
    Reviewing
    CORE Duffel Medium 35L
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, Functional Circuit Training, CrossFit
    Using For: Gym Bag
    Rated 5 out of 5 stars
    Great bag

    This is a well made gym bag. The quality is fantastic and storage is amazing. Great bag for the size.

    Was this helpful?
  • ZK
    Zachary K.
    Verified Buyer
    Reviewing
    CORE Duffel Medium 35L
    I recommend this product
    What type of training is your KNKG bag supporting you with? Fight & Combat Sports
    Using For: Sport / Fitness
    Rated 5 out of 5 stars
    Great Bag!

    A great gym bag! I use it for my Jiu jitsu gear. It carries all my gear, changes of clothes, water bottle, and towel without any trouble, repels odors and cleans easily.

    Was this helpful?
  • DN
    Dane N.
    Verified Buyer
    Reviewing
    CORE Duffel Medium 35L
    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
    Awesome Gym Bag

    I got the large core duffle to replace an old floppy duffle I was using for years. I was hesitant because of the price but I have no regrets. The core duffle is very durable and deep so all my things don’t spill out when looking for something. The only thing is that I’m not able to utilize the belt holder. My belt is a little too stiff and the lever buckle doesn’t quite slide in all the way. But there is more than enough room inside the bag.

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