Core Duffel Bag - 40 L

1680D ballistic weave. Custom hardware. Built to outlast the gear inside it.

Most gym bags use 600D polyester. Ours is 1680D ballistic weave — the fabric grade used in high-end luggage — because a bag that gets thrown in a trunk six days a week takes more abuse than a suitcase ever will.

The zippers and hardware are custom stainless steel, tooled for this bag specifically. Hardware is the first thing to fail on a cheap duffel, and it's the part most brands don't bother to change.

Every piece of your kit has a place:

• Hidden shoe compartment — folds out when you need it, tucks away when you don't. You never lose the space.
• External belt holder — keeps your belt flat on stainless clips instead of bent around everything else.
• Waterproof wet bag — sweaty clothes sealed off from clean ones.
• Removable dividers — your shaker stops rolling around with your chalk.
• Three zip pockets, two mesh pockets — small things stay findable.

Works after the gym, too

Laptop sleeve, luggage sleeve, and a hidden travel pocket. It handles the office and the airport as well as the gym floor.

The details:

• 40L — 21″ × 10″ × 12″
• 1680D ballistic weave polyester
• Custom stainless steel zippers and hardware
• Jacquard webbing straps
• Padded shoulder strap + reinforced handles
• 1-year manufacturing warranty
• 30-day money back, no questions asked

Small will fit 21-30" waist

Medium will fit 30-34” waist

Large will fit 34-38” waist

Extra Large will fit 38-45” waist

30-Day Money Back Guarantee

Send us an email at hello@katamu.co for any questions

How long does it take to process an order?

Most orders are shipped out same day or next working day (we don't ship on weekends). On average for a US order you can expect to wait a week for your order to be handed over to DHL/USPS however we will create your label as soon as we possibly can. For international order processing time can vary from 3 days to 2 weeks. For pre orders processing times may vary

How long does shipping take for a United States order?

Once the order is handed over to DHL/USPS you can expect your order to be delivered in 2-4 days.

How long does shipping take for an international order?

Once shipped your order can take between 5 to 15 days depending on your location.

Do I have to cover customs & duties?

We do NOT cover customs fees as they are calculated by every country differently & at random & our current shipping providers dont have options to cover duties costs

Where do we ship from?

All US orders are shipped from Wisconsin.

How much is shipping?

Shipping varies from product to product and will be calculated at checkout. Free for US orders over 75$

Do all orders have a tracking link?

Yes. All orders come with a tracking number. As soon as a label is created you will get a tracking number sent to your registered email. Sometimes this can go into your junk email. If that's the case please move to from junk to your inbox so future updates go straight to your inbox.

What's the returns policy?

The returns policy can be found on our refund policy page.

If there's a problem with my order, what can I do?

If there's a problem with your order please reach out to our customer service team, hello@katamu.co