THE CORE DIFFERENCE
Your lifting belt has its own place.
The CORE PRO Duffel is built with a dedicated external lifting belt sleeve, so your belt stays secure, accessible and out of the main compartment.
Carry it hands-free
No more carrying your belt separately or forcing it inside your bag.
Save internal space
Keep more room inside for shoes, clothes, towels, bottles and daily gym gear.
Locked in place
Magnetic snaps secure the belt sleeve faster, cleaner and more securely.
CORE PRO — NEXT EVOLUTION
Upgraded where it counts
Same proven CORE function. Now upgraded with smarter belt storage and more ways to make it yours.
Magnetic Belt Sleeve
Upgraded from velcro to magnetic snaps for faster, cleaner and more secure belt storage.
Large Velcro Patch Panel
Built for added customization. Attach your favourite patches and make your CORE PRO setup your own.
Heavy-Duty Shoulder Strap
Our most heavy-duty shoulder strap to date, made with a stronger build, padded support and a more secure carry feel.
Custom Hardware & Reinforced Webbing
Finished with custom hardware and double-reinforced webbing in high-stress areas for a tougher, more dependable build.
SIZE COMPARISON
FAQS
What makes the CORE PRO Small Duffel different?
The CORE PRO Small Duffel is an upgraded version of our best-selling CORE gym bag. It keeps the same proven CORE function, now upgraded with magnetic belt sleeve closures, a larger velcro patch panel, our most heavy-duty shoulder strap, custom hardware and reinforced webbing.
What size is the CORE PRO Small Duffel?
The CORE PRO Small Duffel is a 25L gym duffel, measuring approximately 40cm wide x 25cm high x 25cm deep. It weighs 1.4kg / 3.1 lbs and is designed for daily gym sessions, lifting gear, shoes and everyday essentials.
Does the CORE PRO Small Duffel fit a lifting belt?
Yes. The CORE PRO Small Duffel has a dedicated external lifting belt sleeve designed to fit belts up to approximately 4.5" wide x 45" long. The belt sits outside the main compartment, helping save internal packing space for the rest of your gear.
Will it fit other lifting belt brands?
The Small belt sleeve is designed to fit lifting belts up to approximately 4.5" wide x 45" long. Other lifting belt brands may vary in thickness, stiffness and shape, so fit can depend on the specific belt.
Does the Small Duffel have shoe storage?
Yes. The CORE PRO Small Duffel has shoe storage designed to fit up to a US men's size 10 shoe. Shoe fit can vary depending on the shoe style, bulk and shape.
Does the CORE PRO Small Duffel fit a laptop?
Yes. The CORE PRO Small Duffel includes a laptop sleeve that fits up to a 14" laptop, making it a practical option for gym-to-work carry or everyday use.
What should I pack in the CORE PRO Small Duffel?
The Small is ideal for daily gym essentials like shoes, training clothes, wraps, straps, bottles, towels, accessories, a 14" laptop and a lifting belt stored externally. It gives you more room than the Mini without moving into a larger full-size duffel.
Should I choose the Mini or Small CORE PRO Duffel?
Choose the Mini if you want the most compact option for light gym essentials and a KNKG Lifting Belt. Choose the Small if you need more packing space, shoe storage up to size 10, a 14" laptop sleeve and a larger lifting belt sleeve.
Can I add patches to the CORE PRO Small Duffel?
Yes. The CORE PRO Small Duffel includes a large velcro patch panel so you can customize your setup with compatible patches.
Is the lifting belt included?
No. The lifting belt is sold separately. The CORE PRO Small Duffel includes the dedicated belt sleeve, but the belt itself is not included.