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 (1,194 Reviews)
$290
Size: Medium 35L
Mini 15L
Mini 15L
Medium 35L
Medium 35L
Large 51L
Large 51L
Color:
Black
Natty
Green
Limited Edition - Waxed Canvas: Black
Tan
Black
Camo
Traditional
Traditional Waxed Canvas · Restocking Late August
Tan Waxed Canvas · Restocking Mid September
ADD ON AND SAVE
Lifting Belt
Lifting Belt
$50 $60
Duffel Divider
Duffel Divider
$50 $50
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OUR BEST SELLING DUFFEL - CRAFTED FROM THE WORLD'S BEST WAXED CANVAS 

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.

(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
0.9 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.

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 1,194 reviews
Total 5 star reviews: 1.1k
Total 4 star reviews: 109
Total 3 star reviews: 13
Total 2 star reviews: 5
Total 1 star reviews: 12
97%would recommend these products
Slide 1 selected
1,194 reviews
  • RM
    Ryan M.
    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
    Using For: Gym Bag
    Rated 5 out of 5 stars
    Impressed

    I've been really impressed with the KING CORE Medium 35L Duffel. It's the perfect size of the gym without feeling oversized. The bag feels premium, holds its shape and feels like it's made to last. There's enough organization to keep everything easy to find. Highly recommend!

    Was this helpful?
  • CR
    Cameron R.
    Verified Buyer
    Reviewing
    CORE Duffel Waxed Canvas Medium 35L
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, Fight & Combat Sports, Other
    Using For: Sport / Fitness, Work
    Rated 5 out of 5 stars
    Best all around bag for sports

    I don’t just use it for the gym. It works great as a beach bag, the sand brushes right off! and also a range day bag! Fits all my gear and safety equipment. The quality of this bag means I’ll be able to use it for a long time to come! Definitely planning on getting the backpack

    Was this helpful?
  • AF
    Anthony F.
    Verified Buyer
    Reviewing
    CORE Duffel Waxed Canvas Medium 35L
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting, Bodybuilding
    Using For: Gym Bag, Work
    Rated 5 out of 5 stars
    The best gym bag out there!

    King Kong thought of everything your gym accessories need with these duffels. This is my fourth duffel from them and the waxed canvas is so cool! Best gym bag out there!

    Was this helpful?
  • JS
    Jamison S.
    Verified Buyer
    Reviewing
    CORE Duffel Medium 35L
    I recommend this product
    What type of training is your KNKG bag supporting you with? Functional Circuit Training
    Using For: Gym Bag
    Rated 5 out of 5 stars
    Really nice bag

    Great bag, perfect size, holds its structure really wells

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

    I needed something to use for work, and holding uniform when I changed for gym time. It works great and motivates me to get after it.

    Was this helpful?
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