Why "Sustainable Material" Needs a Second Question

Corporate gift catalogues use the word "sustainable" to describe a wide range of materials, and not all of them mean the same thing or carry the same level of verification. For a buyer trying to match a gift to an ESG policy, it helps to know what each material term actually refers to, so the right follow-up question can be asked before an order is placed.

RPET (Recycled Polyethylene Terephthalate)

RPET is plastic reprocessed from post-consumer waste, most commonly PET bottles. It's one of the most common materials in sustainable bags, pouches, and drinkware because the source material (bottles) is widely collected and the reprocessing is well established. The follow-up question worth asking a supplier: what percentage of the material is actually recycled content, since some RPET products blend recycled and virgin plastic.

Recycled ABS and PP (Acrylonitrile Butadiene Styrene and Polypropylene)

These are recycled plastics commonly used in harder-wearing items like tech accessories, cases, and clips, rather than fabric-based products. Both reduce demand for virgin plastic production and keep existing plastic waste in circulation, though as with RPET, the recycled-content percentage can vary between suppliers and products.

Recycled Stainless Steel and Aluminium

Common in drinkware and tech accessories, recycled metal is notable because it's 100% recyclable without degrading in quality — unlike some plastics, which lose structural integrity after a few recycling cycles. Recycled metal also tends to be more corrosion-resistant and longer-lasting, which matters for a gift meant to be used for years rather than months.

Ocean-Bound or Ocean Plastic

This refers to plastic waste collected from oceans or from areas at high risk of ocean pollution (coastlines, rivers feeding into the sea), rather than general post-consumer waste. It's used in some bag and accessory lines specifically to tie the product's material story to marine cleanup, rather than general landfill diversion. Worth asking a supplier where exactly the material was collected and whether that claim is independently documented, since "ocean plastic" isn't always a formally certified term the way FSC or GRS are.

FSC-Certified Bamboo

Bamboo itself is a fast-growing, biodegradable, and compostable material with a naturally high growth rate and low pesticide need. An FSC certification on a bamboo product specifically confirms the forestry source was independently audited, applying the same forest-certification logic used for timber products to a fast-growing grass instead.

Glass and Ceramic

Both are made from abundant natural raw materials and are infinitely recyclable without losing quality, though neither typically carries a "recycled content" claim the way plastics and metals do — their sustainability case rests more on durability and reusability than on recycled sourcing.

Questions Worth Asking Before Ordering

  • What percentage of this specific product is recycled or certified material, versus a blend with virgin material?
  • Is there a certificate number or documentation available for the claim (FSC, GRS, RCS, or similar), or is it a supplier-stated claim without third-party verification?
  • For ocean plastic specifically, where was the material collected, and is that documented?
  • Does the material choice match what your company's ESG policy specifically asks for, or does it need to be checked against a defined list of acceptable material types?

The Underlying Point for Buyers

None of these materials are inherently better than the others — they suit different product types and different sustainability priorities (recycled content, marine cleanup, forestry management, longevity). The material story becomes useful for ESG reporting purposes only when it's specific enough to document, rather than a general "eco-friendly" label. This is the same principle behind our guides on RPET vs virgin plastic and eco-friendly vs ESG-compliant gifts: ask what the material specifically is, not just whether it's described as sustainable.

If you're sourcing gifts against a specific ESG material requirement and want help matching products to it, get in touch with our team.