Cradle to Cradle Certified®
Our products are Cradle to Cradle Certified® at Bronce Version 4.1. This means they are designed with circular and responsible materials.
Why certifications matter
Our certifications verify that our materials, processes and products meet globally recognized
standards for quality, enrionment and responsible sourcing.
At glerups, we are committed to creating products that are not only comfortable and of high quality, but also designed with care for both human and the planet.
Our certifications
We combine responsible materials with responsible production.
Our certifications ensure both from farm to foot.
Our certifications ensure both from farm to foot.
ISO Certified Production
Our factory is ISO 9001 and ISO 14001 certified - ensuring consistent quality, environmental responsibility and continous improvements
FSC Certified®
Our rubber soles are made with FSC® certified natural rubber from responsibly managed forests.
What does it mean for you?
Materials chosen with care
We choose natural materials with circularity in mind,
so you can feel good about what you wear.
Certified production
We have our own factory in Romania and we follow internationally
recognized standards for quality and environmental management.
Rubber soles from responsible sources
Our natural rubber soles are FSC® certified,
protecting forests and supporting people.
Certification overview
| Certification | What it covers | Why it matters |
|---|---|---|
|
Cradle to Cradle Certified® Bronze Version 4.1
|
Materials, product design, health, circularity and social fairness. | Ensures products are designed with human and planet in mind. |
|
ISO 9001
|
Quality management systems in production. | Consistent quality and continuous improvement. |
|
ISO 14001
|
Environmental management systems in production. | Reduced environmental impact and responsible resource use. |
|
FSC® natural rubber soles
|
Responsibly sourced natural rubber for soles. | Supports responsible forest management and traceable supply chains. |
See how glerups are made
Crafted in our own factory in Romania with care for both human, animals and the planet.
Frequently asked questions
Are all glerups products Cradle to Cradle Certified®?
No — not all glerups products are Cradle to Cradle Certified®.
The certification applies to glerups slippers covered by the certificate: adult slip-ons, shoes, and boots made from 100% RWS-certified sheep wool with either calf-leather or FSC-certified rubber soles, in sizes 35–51. The official C2C registry says the certificate excludes children’s sizes and models, customized styles, and special editions.
What does ISO certification mean?
ISO certification means an independent certification body has audited an organization and confirmed that it meets the requirements of a specific ISO standard.
ISO itself is the International Organization for Standardization. It creates standards, but it usually does not certify companies directly. Certification is done by accredited third-party auditors.
In practice, ISO certification usually means:
The company has documented processes and controls.
Those processes meet a recognized international standard.
The company is audited regularly to keep the certification.
It shows a structured approach to quality, environment, safety, information security, or another area.
Which glerups are FSC® Certified?
What does FSC® rubber mean?
FSC® rubber means the natural rubber comes from a supply chain certified by the Forest Stewardship Council®, which promotes responsible forest management.
For glerups, the practical meaning is:
The rubber used for the sole is sourced from responsibly managed rubber plantations/forests and is traceable through an FSC-certified chain of custody.
It does not mean the whole slipper is made of rubber, and it does not mean every part of the product is FSC certified. The FSC claim applies to the rubber sole material.