HERITAGE Leather Duffel Medium 46L
The forever classic athletic bag, reinvented. Made to stand up to the test of time. Vintage inspired but not entirely traditional.
Featuring:
- Genuine cow leather
- Internal shoe bag included
- Drink bottle pockets
- Multiple secure pockets and compartments
- Adjustable shoulder strap
SIZE GUIDE
SIZE GUIDE
A TIMELESS ATHLETIC BAG THAT OFFERS THE SAME PERFORMANCE ON DAY ONE THOUSAND AS IT DID ON DAY ONE.
My first memories of training were of leather speed balls and well-worn heavy bags. These pieces had hung in the gym since the turn of the previous century and yet were still the toughest things in the gym. Twenty-five years later, I still find inspiration in the smell of leather and the feel of an old leather heavy bag. I want to recreate that feeling, that gym atmosphere before the time of elliptical trainers, smartwatches, and large, clunky treadmills.
Leather yields strength and longevity. It's timeless and holds a sense of heritage. This is a bag I'm proud to carry both inside and outside the gym. One that will wear in over time, rather than wear out. A bag that will only get better with age, developing a unique patina as is it moulds to me and my training.
- Stefan, KNKG Founder
- DMDavid M.Verified BuyerReviewingHERITAGE Leather Duffel Medium 46LI recommend this productWhat type of training is your KNKG bag supporting you with? Weightlifting, BodybuildingUsing For: Gym Bag, Sport / FitnessRated 5 out of 5 starsBeautiful and high quality
What can I say, I just love this bag. It is the most beautiful bag I’ve ever seen and the build quality is superb.
- BLBrian L.Verified BuyerReviewingHERITAGE Leather Duffel Medium 46LI recommend this productWhat type of training is your KNKG bag supporting you with? CrossFitUsing For: Gym BagRated 5 out of 5 starsQuality Amazing
Quality is amazing. I like that they shipped the bag stuff and full sized (so that the leather isn’t wrecked by being folded)
- JVJames V.Verified BuyerReviewingHERITAGE Leather Duffel Small 25LI recommend this productWhat type of training is your KNKG bag supporting you with? CrossFitUsing For: Gym BagRated 5 out of 5 starsGreat bag
Beautiful textured leather. Plenty of pockets. Holds everything I need. I'm the kind that fills a bag no matter the size so this is perfect. Not too much space, I do wish the zippers had leather fobs or something larger to grab onto.
- SSStefan S.Verified BuyerReviewingHERITAGE Leather Duffel Medium 46LI recommend this productWhat type of training is your KNKG bag supporting you with? Weightlifting, BodybuildingUsing For: Every Day CarryRated 5 out of 5 starsQUALITY
It was the reason I bought it, I looked at the YouTube video teardown and I was impressed with the quality. I was even more impressed when I received it!
- RRRudi R.Verified BuyerReviewingHERITAGE Leather Duffel Small 25LI recommend this productWhat type of training is your KNKG bag supporting you with? Weightlifting, Fight & Combat SportsUsing For: Gym Bag, WorkRated 5 out of 5 starsMy clinical / gym bag.
I purchased this bag looking for something to hold all my clinical equipment and minor gym equipment for those long days at the hospital. This bag has exceeded my expectations! I’m able to fit my 16in MacBook, iPad mini, a notebook, a change of clothes, snacks, 40oz owala, 2 energy drinks, clinical / lab equipment, supplements, and more. I was debating between the 25 and 46 and I’m happy I went with the 25 because it fits everything I need and it’s very compact, I think the 46 would be overkill and way too bulky for what I need it for. I also get a lot of compliments on my bag and the quality is 10/10!
HERITAGE Leather Duffel — Timeless Style and Lasting Strength
The HERITAGE Duffel is our most classic design — a traditional gym bag rebuilt in full-grain leather. Tough, reliable, and timeless, it brings back the old-school gym feel with modern functionality. Built for the active man who wants a bag that performs in the gym and looks just as good outside it.
Why Leather?
Leather isn’t just about looks — it’s one of the toughest natural materials you can train and travel with. The HERITAGE Duffel is crafted from full-grain leather that delivers strength, resilience, and character. Unlike other bags that wear out, leather wears in — softening and molding to your use while developing a one-of-a-kind patina.
- Durability: Withstands years of training and daily carry.
- Feel: Softens and drapes with use, becoming more comfortable over time.
- Style: Develops a unique patina for timeless character.
- Smell: The unmistakable leather scent brings back the nostalgia of old-school gyms and classic training gear.
A Traditional Gym Bag, Upgraded
Inspired by classic duffels that hung in gyms for decades, the HERITAGE Duffel keeps things simple: a spacious main compartment, shoe storage bag, and essential organization. Only now, it’s crafted with premium leather and modern build quality.
- Large main compartment for gear and clothing
- Side and internal pockets for wraps, tech, and small essentials
- Padded adjustable strap for comfortable carry
What Fits Inside
With its versatile size and classic layout, the HERITAGE Duffel fits everything you need for a serious gym session:
- Training shoes or lifters
- Change of gym clothes
- Towel
- Knee sleeves, wraps, grips, or straps
- Water bottle or shaker
- Chalk or accessories
- Phone, wallet, keys (secure pocket)
Materials & Build
- Full-grain leather exterior with reinforced stitching
- Premium YKK zippers
- Durable hardware built to last
- Ventilated shoe storage
- Soft draping design that adapts with use
The Toughest Leather Duffel
The HERITAGE Duffel isn’t just about style — it’s built for heavy training, travel, and everyday abuse. From gym floors to overhead bins, it’s a bag that thrives under pressure and only gets better with age.
Why Choose the HERITAGE Duffel?
- Classic gym bag design made entirely from full-grain leather
- Strong, supple, and ages with character
- Spacious main compartment with shoe and gear storage
- Built tough for athletes but stylish enough for everyday use
- A timeless bag that bridges performance and heritage