By Hariz Khairi • Updated September 2026 • 5 min read

What Product Did Unseen Matters Create for B. Braun?

Unseen Matters designed a Recycled Stainless Steel Tumbler with 2 Interchangeable Lids as a sustainable corporate gift in KL for B. Braun Sharing Expertise, built for daily commutes, meetings, conferences, and everyday use.

This project shows how an ESG corporate gift Malaysia healthcare companies can distribute reflects sustainability values at a material level – recycled stainless steel construction paired with genuine dual-function design, rather than a standard branded drinkware giveaway.

Why Did B. Braun Need a Custom Tumbler?

B. Braun wanted a sustainable corporate gift in KL that gave recipients zero excuses to reach for single-use plastic, functioning as a genuine daily-use replacement rather than an occasional-use item.

Healthcare and life sciences companies face a particular kind of scrutiny around sustainability messaging – a branded gift needs to actually embody the values it claims, not just carry a green-sounding tagline. B. Braun’s brief called for a tumbler substantial enough to replace a recipient’s usual disposable cup or bottle across their entire day, from the morning commute through meetings and conferences, so the sustainability claim held up in practice, not just in marketing copy.

Where Did the Design Inspiration Come From?

The tumbler’s design centred on a two-lid system built into a single recycled stainless steel body, giving recipients one product that adapted to both transport and drinking contexts without needing a second vessel.

Most reusable drinkware forces a choice between a travel-friendly sealed lid or a comfortable sipping lid, rarely both. Solving that trade-off directly shaped the concept from the start: a carry lid for secure transport during a commute or between meetings, and a separate sip lid for easy drinking once seated. Housing both options around the same tumbler body meant B. Braun’s recipients never had to choose between convenience and comfort – the tumbler simply adapted to whichever moment they were in.

How Does the Double-Wall Vacuum Insulation Work?

The tumbler’s double-wall vacuum insulation keeps drinks hot for up to 9 hours or cold for up to 18 hours, maintaining temperature well beyond a typical single-wall drinkware product.

Vacuum insulation relies on an air gap between two layers of stainless steel, removing the pathway for heat to transfer in or out of the tumbler. Getting this right at a recycled-material level required careful sourcing, since recycled stainless steel can vary slightly in composition batch to batch, and that variance needed to be accounted for to guarantee consistent insulation performance across the full production run, not just in a single tested prototype.

How Was the Lid-Swap Mechanism Engineered?

Making two lids interchangeable on the same tumbler body meant both needed to share an identical seal mechanism, so switching between them never compromised the tumbler’s leak resistance.

If the carry lid and sip lid used different threading or seal designs, recipients would encounter inconsistent performance depending on which lid was attached, undermining trust in the product. Both lids were engineered around the same base threading and sealing gasket specification, so the tumbler performed reliably whether closed with the transport-focused carry lid or the drinking-focused sip lid, without any drop in insulation or leak resistance between the two configurations.

What Was the Outcome of the B. Braun Tumbler Project?

B. Braun recipients received a corporate gift that replaced disposable cups and bottles in their daily routine, carrying B. Braun’s branding into commutes, meetings, and conferences long after the anniversary celebration ended.

For B. Braun, it meant a sustainability message backed by a genuinely functional product, rather than gifting that claimed environmental values without the material substance to support them. For Unseen Matters, the project reinforced how dual-function engineering, applied to something as familiar as a tumbler, can turn a routine corporate gift into a daily habit recipients build around.

Looking for a Sustainable Corporate Gift in KL?

Unseen Matters designs custom sustainable corporate gifts and ESG-aligned event gifting for healthcare, life sciences, and corporate brands across Malaysia, from concept through production.

Whether it’s a sustainable conference event gift, an ESG corporate gift Malaysia healthcare teams can be proud of, or a fully custom sustainable corporate gift in KL, Unseen Matters can take a project from concept to delivery. Get in touch with Unseen Matters to start your own project.