PLUS Duffel Medium 45L
Man wearing charcoal grey KNKG PLUS Duffel bag over shoulder in gym
Front view of charcoal grey KNKG PLUS Duffel bag sitting on wooden box
Side view of charcoal grey KNKG PLUS Duffel bag sitting on wooden box, with shoulder strap suspended
Flat lay of charcoal grey KNKG PLUS Duffel bag sitting on ground surrounded by workout gear
Birds eye view of charcoal grey PLUS Duffel packed with shoes, gym clothes, headphones, bottles and skipping rope
Two pairs of NOBULL sneakers packed inside charcoal grey PLUS Duffel shoe compartments
Blender bottle and water water packed inside charcoal grey PLUS Duffel
Close up of KNKG branded zippers and steel buckles on charcoal grey PLUS Duffel
PLUS Duffel Medium 45L

PLUS Duffel Medium 45L

4.9
Rated 4.9 out of 5 stars
4.9 Stars (1,894 Reviews)
$180
Size: Medium 45L
Mini 15L
Mini 15L
Small 33L
Small 33L
Medium 45L
Medium 45L
Large 63L
Large 63L
Color: Charcoal
Charcoal
Black
Redwood
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BUILT-IN SHOE STORAGE. ZERO GYM GEAR CONTAMINATION. 

• Dual internal shoe zone
• Dual bottle pockets
• Multiple compartments and pockets 

If it ain’t broke, don’t fix it? WRONG. Always strive for better. That’s why we boosted our original duffel. With the most durable construction and optimized functionality, the PLUS Duffel will elevate your every day with the utility that will help you achieve more. Get on the right side of prepared and discover a new level of focus.

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 PLUS Duffel is made from:

• 1000D nylon body material

• Ripstop nylon lining

• YKK zippers

• Steel buckles

• Hypalon trims

​
PLUS DUFFEL
SIZE COMPARISON
Capacity
Bag Weight
Height (H)
Width (W)
Depth (D)
Shoe Storage
SMALL
33 L / 8.7 GAL
1.3 kg / 2.8 lbs
27cm / 10.6"
45cm / 17.7"
27cm / 10.6"
Size 15 Shoes (x1 pair)
MEDIUM
45 L / 11.9 GAL
1.5 kg / 3.3 lbs
30cm / 11.8"
50cm / 19.7"
30cm / 11.8"
Size 15+ Army Boots (x2 pairs)
LARGE
63 L / 17 GAL
1.5 kg / 3.3 lbs
33cm / 13"
55.9cm / 22"
30cm / 11.8"
Size 15+ Army Boots (x2 pairs)
PLUS DUFFEL
SIZE COMPARISON
Capacity
Bag Weight
Height (H)
Width (W)
Depth (D)
Shoe Storage
,
SMALL
33 L / 8.7 GAL
1.3 kg / 2.8 lbs
27cm / 10.6"
45cm / 17.7"
27cm / 10.6"
Size 15 Shoes
(x1 pair)
MEDIUM
45 L / 11.9 GAL
1.5 kg / 3.3 lbs
30cm / 11.8"
50cm / 19.7"
30cm / 11.8"
Size 15+ Army Boots
(x2 pairs)
LARGE
63 L / 17 GAL
1.5 kg / 3.3 lbs
33cm / 13"
55.9cm / 22"
30cm / 11.8"
Size 15+ Army Boots
(x2 pairs)

PACK FOR MOVEMENT

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The best traditional gym bag for anyone who wants to bring fresh clothes to a workout and take sweaty clothes home again, without your gear resembling a fragrant swamp. It's tough enough to last a limetime, and its six compartments kept us organized.

GEAR UP FOR IMPROVEMENT

4.9
Rated 4.9 out of 5 stars
Based on 1,894 reviews
98%would recommend these products
Slide 1 selected
1,894 reviews
  • DW
    Don W. M.
    Verified Buyer
    Reviewing
    PLUS Duffel Mini 15L
    I recommend this product
    Rated 5 out of 5 stars
    Duffle 15liter

    Absolutely 💯 percent quality. Hope to use this bag for years. Thanks 😊

    Was this helpful?
  • AB
    Arturo B.
    Verified Buyer
    Reviewing
    PLUS Duffel Medium 45L
    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
    Plus Duffel medium 45L

    I bought the KNKG bag and I find it to be an excellent bag. There is plenty of storage space and plenty of pockets. All the materials are quality and durable. I had an issue with a button falling off and the company handled the matter quickly and I was very pleased with the customer service.

    Was this helpful?
  • JW
    Joshua W.
    Verified Buyer
    Reviewing
    PLUS Duffel Mini 15L
    I recommend this product
    Rated 5 out of 5 stars
    Awesome bag for the gym floor

    I love this freakin bag. For me it's perfect to carry the gear I need on the floor - water, belt, straps, rope, headphones, intra powder, and some room to spare. It will not replace my main bag but my main bag is 50L and I don't want to carry that monster everywhere. It's exceptionally well made; I have no doubt it will survive near daily use for years to come.

    Was this helpful?
  • KB
    Keith B.
    Verified Buyer
    Reviewing
    PLUS Duffel Mini 15L
    I recommend this product
    Rated 5 out of 5 stars
    Perfect Size for the Gym

    The KNKG PLUS Duffel Mini 5L is exactly what I needed. I don’t carry a lot to the gym - just my gym clothes and shower gear - and this bag is the perfect size for that.

    I really like not having to carry a large, bulky gym bag with a lot of unused space. The Mini keeps everything organized, is easy to carry, and takes up very little room. Despite its small size, it holds everything I need.

    The construction is excellent and feels like it will last for years. It’s compact, well designed, and extremely practical. If you travel light at the gym and just need room for clothes and shower essentials, the 5L Mini is hard to beat.

    Was this helpful?
  • JE
    James E.
    Verified Buyer
    Reviewing
    PLUS Duffel Medium 45L
    I recommend this product
    What type of training is your KNKG bag supporting you with? Weightlifting
    Using For: Gym Bag, Sport / Fitness
    Rated 5 out of 5 stars
    The Perfect Duffel Bag !

    Excellent quality, durable, and spacious. Perfect for travel or the gym, with plenty of room without feeling bulky. Very happy with this purchase !

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PLUS Duffel — The Original KNKG Gym Bag with Unmatched Shoe Storage

The PLUS Duffel is the bag that put KNKG (then King Kong Apparel) on the map. Originally designed for CrossFit, it’s a traditional gym bag elevated with smarter organization, reinforced durability, and the shoe storage system that changed how athletes pack for training.

Why the PLUS Duffel Stands Out

The PLUS is made for everyday athletes who need smarter storage. With dedicated compartments, reinforced construction, and dedicated shoe zones, this is the bag built to handle every training day.

Shoe Storage by Size

  • Small (33L): Holds 1 pair of shoes up to size 15.
  • Medium (45L): Fits 2 pairs, even size 15+ boots.
  • Large (63L): Fits 2 pairs of lifters, sneakers, or boots.

The PLUS Duffel shoe zone is ventilated to keep the inside fresh and separated from clean gear.

Pockets & Organization

  • Dedicated shoe zones
  • Spacious main compartment for clothing, towel, and bulk gear
  • Side pockets for wraps, straps, and smaller items
  • Quick access valuables pockets for wallet, phone, and keys

Materials & Build

  • 1000D nylon body material
  • Ripstop nylon lining
  • Heavy-duty YKK zippers
  • Steel buckles
  • Hypalon trims for reinforcement

The Toughest Gym Bag Quality

The PLUS Duffel was built to last from the very beginning. Reinforced stitching, abrasion-resistant nylon, and steel hardware means it can take years of daily training and travel — and still hold up like day one.

Why Choose the PLUS Duffel?

  • Classic gym bag design with smarter compartments
  • Dedicated shoe zones sized for lifters, runners, and boots
  • Multiple capacities: 33L, 45L, and 63L
  • Originally designed for CrossFit, trusted by athletes worldwide
  • Proven quality: the bag that started it all