What is your Shipping Policy?

We know you want your stuff ASAP. If your order is not a pre-order please take note of the following. We try to ship orders within a 48 hour period after receiving your order. We ship using Australia Post from Perth Western Australia. That means items shipped to the Eastern States of Australia can take between 6-14 business days. If you are not sure, please chat with us. We ship worldwide but overseas delivery times can vary from country to country. Free Shipping is offered for orders over $200 within Australia. If your order is for a pre-order, we will contact you with updates as the order progresses. All orders will receive a confirmation email once the order is made and another when the order is shipped. If you don't receive these please contact us.

$34.95

Tax included.

Colour — Brown

Brown

Black

Australian Designed and Owned

Easy Returns 15 Days

Lifetime Warranty

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Low-Stress Brass Hardware

Unlike metal clips that grind and wear over time, the S40 uses a clever brass D-ring cinch system with cotton tails. This design eliminates metal-on-metal friction, extending the life of your gear and reducing noise on the move.

Universal Sling Adaptability

The S40 Strap is built to go anywhere—literally. Its loop-and-lock design fits virtually any bag, case, or tool with a basic anchor point. No proprietary clips or fittings, just functional flexibility for your unique setup.

Heritage-Grade Natural Materials

We craft bags from heavyweight beeswaxed canvas, genuine brass, and premium full-grain leather, delivering authentic quality, sustainability, and enduring style that matures beautifully rather than deteriorating.

Product Features

(1) 21cm Fastening Tail
(2) Double Brass D Ring Tension Lock
(3) Brass Square Ring
(4) Brass Slide Buck

Specifications

Australian Designed
80cm -146 cm * 3.8 cm *
100% Cotton Webbing

Comfortable, All-Day Carry

A 38mm-wide main strap made from soft yet sturdy cotton webbing helps spread weight across your shoulder, making it more comfortable for extended use. Whether you’re carrying a heavy load or just daily essentials, the S40 stays comfortable.

"Great versatile strap! Impressed with the quality and design thought thats gone into this strap. I've used it on a few different pouches for my bike already. Top job!"

Chris V, Australia

Adjustable and Serviceable

Easily adjust the strap from 80 to 146 cm to suit your body or carry style. The cotton webbing is biodegradable and tough, and the strap is built for a lifetime of use—with re-waxing and repairs available to keep it going strong.

Crafted In-House, End to End

From the solid brass hardware to the hand-cut webbing, every part of the S40 Sling is designed and built by our own team. That means full control over materials, design, and durability—no compromises, no shortcuts.

Why Buy From Jack Stillman?

Built for a Lifetime of Adventure

Our bags are engineered to last decades through meticulous design, rigorous real-world testing, and lifetime support—keeping gear functional, out of landfill, and reliably by your side.

Australian Family Values, Global Outlook

Proudly Australian and family-operated, we deliver genuine, responsive service grounded in community values, with worldwide reach and purposeful contributions to local environmental and social initiatives.

Single-Origin Craft: We Own the Chain

We control every production stage from material sourcing, manufacturing to direct shipping, ensuring ethical practices, meticulous quality, and complete transparency from our family-owned factory to your hands.

Wax-On Water Repellency (Forever Serviceable)

Natural beeswax treatments allow ongoing waterproofing renewal, empowering users to actively maintain, enhance, and personalize their bags’ durability, performance, and aesthetic charm over many years.

FAQs

Waxing canvas is a natural way or protecting the fabric and whoever is under it. The wax finish causes water to bead off instead of soaking into the fibres. The advantage is that this method of proofing the fabric also allows it to breathe, unlike the plastic treatment options found in waterproof fabrics. Want to know more? Read this article.

Yes. This product is covered with our lifetime guarantee. That means we are super confident that our manufacturing process is so tight won't see a popped seam or a shonky zipper anytime soon. We aren't saying the product is indestructible, but it certainly is built to last. Read this article for more information on our Warranty.

Waxed canvas is easy to take care of. The ensure the longevity of the canvas we recommend you re-wax it at least every 12 months. This keeps the product water-resistant, mould resistant and it also binds the fibres together.

We know you want your stuff ASAP. If your order is not a pre-order please take note of the following.

We try to ship orders within a 48 hour period after receiving your order.
We ship using Australia Post from Perth Western Australia. That means items shipped to the Eastern States of Australia can take between 6-14 business days. If you are not sure, please chat with us.
We ship worldwide but overseas delivery times can vary from country to country.
Free Shipping is offered for orders over $200 within Australia.
If your order is for a pre-order, we will contact you with updates as the order progresses.
All orders will receive a confirmation email once the order is made and another when the order is shipped. If you don't receive these please contact us.

Since 2018, we have made Jack Stillman products in-house in our Australian owned and operated facility in Vietnam. It is because of this that we can confidently offer our lifetime guarantee. To learn more about our manufacturing, read this.