CORE Duffel Waxed Canvas Medium 35L
Athlete wearing KNKG Waxed Canvas Duffel over shoulder in barn style gym
Front view of KNKG Waxed Canvas Duffel
KNKG Waxed Canvas Duffel in wooden box
KNKG Waxed Canvas Duffel worn by male and female athlete, side by side
KNKG Waxed Canvas Duffel sitting on wooden box inside barn style gym
Back view of KNKG Waxed Canvas Duffel sitting on wooden box
Close up of lifting belt sleeve on KNKG Waxed Canvas Duffel
Side view of KNKG Waxed Canvas Duffel sitting on box with matching lifting belt attached
Drink bottle pockets on KNKG Waxed Canvas Duffel
Close up of drink bottle inside pocket of KNKG Waxed Canvas Duffel
Shoe compartment on side of KNKG Waxed Canvas Duffel
Open KNKG Waxed Canvas Duffel birds eye view of packed bag with gym essentials
Internal pockets of KNKG Waxed Canvas Duffel
Laptop sleeve inside KNKG Waxed Canvas Duffel
Open KNKG Waxed Canvas Duffel with laptop, coffee mug, and headphones on a dark background
Close up of leather zips on KNKG Waxed Canvas Duffel
Inside view of shoes inside KNKG Waxed Canvas Duffel
Close up of KNKG Waxed Canvas Duffel with water droplets
KNKG Waxed Canvas Duffel sitting on wooden bench in front of wooden barn
Person putting drink bottle in front pocket of KNKG Waxed Canvas Duffel
Person grabbing phone from front pocket of KNKG Waxed Canvas Duffel
Person grabbing gym essentials out of KNKG Waxed Canvas Duffel sitting on gym floor, with barbell in background
Close up of person pulling weightlifting belt out of KNKG Waxed Canvas Duffel

CORE Duffel Waxed Canvas Medium 35L

4.8
Rated 4.8 out of 5 stars
4.8 Stars (1,145 Reviews)
$270
Size: Medium 35L
Mini 15L
Mini 15L
Medium 35L
Medium 35L
Large 51L
Large 51L
Color:
Black
Natty
Green
Desert
Limited Edition - Waxed Canvas: Traditional
Tan
Black
Camo
Traditional
Traditional Waxed Canvas · Restocking Late August 2026
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Duffel Divider
Duffel Divider
$40 $50
Matching Lifting Belt
Matching Lifting Belt
$50 $60
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TRADITIONAL WAXED CANVAS GYM DUFFEL

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 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 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

​

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
0.6 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)

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.

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.

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 1,145 reviews
Total 5 star reviews: 1k Total 4 star reviews: 104 Total 3 star reviews: 12 Total 2 star reviews: 4 Total 1 star reviews: 12
98%would recommend these products
Slide 1 selected
1,145 reviews
  • C
    Charles
    Reviewing
    CORE Duffel Large 51L
    I recommend this product
    Rated 5 out of 5 stars
    5 Stars

    High Quality

    Was this helpful?
  • AM
    Adrian M.
    Verified Buyer
    Reviewing
    CORE Duffel Mini 15L
    I recommend this product
    What type of training is your KNKG bag supporting you with? Other
    Using For: Work
    Rated 5 out of 5 stars
    Perfect Size

    Bought this bag to replace my work bag and it’s awesome. Holds everything in so many different pockets where as my last one only had two. Keeps my bulk things separate from my chargers, power bars and anything else I’m packing. I’d definitely buy another

    Was this helpful?
  • RY
    Ralph Y.
    Verified Buyer
    Reviewing
    CORE Duffel Large 51L
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting
    Using For: Sport / Fitness
    Rated 5 out of 5 stars
    Carry On!

    I recently used my 51L bag for carry on travel. It fit into the overhead storage while holding 5+ days of cloths, gym wear and personal items.

    Was this helpful?
  • JP
    Jeffrey P.
    Verified Buyer
    Reviewing
    CORE Duffel Large 51L
    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
    Better than expected

    I’m very pleased with the bag. Great design, ample room and quality materials. The first time closing the zipper, I could tell this is a very well made bag.

    Was this helpful?
  • MJ
    Michael J. P.
    Verified Buyer
    Reviewing
    CORE Duffel Large 51L
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, Functional Circuit Training, CrossFit, Other
    Using For: Gym Bag, Every Day Carry
    Rated 4 out of 5 stars
    2nd 51L bag in my arsenal.

    This bag along with my first are used for the gym and training equipment. I also use them for weekend getaways. Hold the correct amount for the 3 days.

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