PLUS Duffel Medium 45L
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.
SIZE COMPARISON
SIZE COMPARISON
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(x1 pair)
(x2 pairs)
(x2 pairs)
PACK FOR MOVEMENT
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
- OMOmmar M.Verified BuyerReviewingPLUS Duffel Medium 45LI recommend this productWhat type of training is your KNKG bag supporting you with? Weightlifting, Bodybuilding, OtherUsing For: Gym Bag, Sport / Fitness, Every Day CarryRated 5 out of 5 starsPerfect bag!
I absolutely love this bag! I originally bought it just for my gym use, but it is so versatile that I'm also using it as a travel bag, with that said I'm hoping to get another bag just for travel! The material is top notch and durability is great! One of my best buys for sure! I highly recommend this brand to anyone!
- RPRoland P.Verified BuyerReviewingPLUS Duffel Medium 45LI recommend this productWhat type of training is your KNKG bag supporting you with? WeightliftingUsing For: Gym BagRated 5 out of 5 starsDurable and devoid of flimsiness
The bag clearly is overbuilt in every possible good way. My other gym bags eventually tore seams or had threadbare supporting pocket linings and zippers that failed after a few months of being stuffed. The shoulder strap is also super robust and won’t dig into your shoulder. My only nit is “preferential “ where it would be easier to pack if it had a little bit more structure. Either way I would buy this again as -is.
- LTLuke T.Verified BuyerReviewingPLUS Duffel Small 33LI recommend this productWhat type of training is your KNKG bag supporting you with? WeightliftingUsing For: Gym BagRated 5 out of 5 starsGreat bag
Solid quality, lots of space, ended up needing a smaller bag than I thought but all in all love it
- GNGym N.Verified BuyerReviewingPLUS Duffel Medium 45LI recommend this productWhat type of training is your KNKG bag supporting you with? CrossFit, Weightlifting, BodybuildingUsing For: Gym BagRated 5 out of 5 starsLast bag you'll need
You will be hard press to find a bag that is tougher holds its shape and all your stuff without fail.
- RSRussell S.Verified BuyerReviewingPLUS Duffel Medium 45LI recommend this productWhat type of training is your KNKG bag supporting you with? Weightlifting, OtherUsing For: Gym Bag, Sport / FitnessRated 5 out of 5 starsSolid, looks great, comfortable.
I started with the 45L but upgraded the size to the next large. After the upgrade, I think the 45L is closer to the size that I wanted, but I'm happy with the larger version too. I enjoy the layout of the pockets and shoe storage. It's an excellent bag.
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