Who you choose to work with is of great importance.

Here you can learn about our suppliers and their work for a sustainable textile industry.

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“Passion for Denim, passion for Life.”

Calik Denim is one of the global actors in denim fabric production, placed among the two hundred companies that export the most in Turkey. Where they are today is cultivated throughout their journey, which began as the first industrial investment of the Calik Holding in Malatya, in 1987.

Calik Denim employs over 2,700 people. They work with local organic cotton farmers, building long-term relationships and they have a very strong passion for a sustainable world, as they have designated and declared “sustainability” as an essential piece of who they are and what they stand for.

We at Lub Dub Denim are very proud to be working with Calik Denim, using their beautiful and sustainably produced organic and recycled Denim fabric for our garments.

Calik Denim has the following certificates:


Ensuring high level of safety from harmful levels of chemical substances, the Standard 100 by Oeko-Tex® is a global testing and certification system for textile products from the thread to the ready-to-use items.

Several regulated and non-regulated substances which may be harmful to human health are covered in the Standard 100 by Oeko-Tex® criteria catalogue.

>> Read more 

GOTS (Global Organic Textile Standard)

GOTS is the worldwide leading textile processing standard for organic fibers, including ecological and social criteria, backed up by independent certification of the entire textile supply chain. In difference to the most common standard, BCI (which sadly is used by most giant fashion brands), GOTS have strong regulations in order to become certified. There is also a difference between "organic" and "made with organic" within GOTS.

>> Read more 


GRS (Global Recycle Standard)

The GRS is an international, voluntary, full product standard that sets out requirements for third-party certification of recycled content, chain of custody, social and environmental practices and chemical restrictions. The goal of the GRS is to increase use of recycled materials in products and reduce/eliminate the harm caused by its production.

The objectives of GRS:

  • alignment of definitions across multiple applications;
  • track and trace recycled input materials;
  • provide customers (brands and consumers) with a tool to make informed decisions;
  • reduce harmful impact of production to people and the environment;
  • provide assurance that materials in the final product are actually recycled and sustainably processed;
  • drive innovation in addressing quality issues in the use of recycled materials. 

>> Read more 

Organic Content Standard (OCS)

The OCS applies to any non-food product containing 5-100 % organic material.  It verifies the presence and amount of organic material in a final product.  It addresses the flow of product within and between companies, raw material verification, post-harvest processing, manufacturing, packaging and labeling, storage, handling, and shipping through the seller in the last business-to-business transaction.  

It allows for transparent, consistent, and comprehensive independent evaluation and verification of Organic Material content claims on products by an accredited third-party Certification Body (CB).

The goal of the OCS is to ensure trust in organic content claims and uses the chain of custody requirements of the Content Claim Standard (CCS).

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ISO – System Certificates

Calik Denim prioritize work safety and quality in all of their operations and always aims to provide world-class products and services. The international certificates which Calik have been entitled to receive, indicate their dedication and competence in this field. Here are the system certificates received by Calik Denim: click on each one to read more. 

Turkey EPD - LCA (Life Cycle Assessment)

Life Cycle Assessment is an evaluation method which assesses the environmental impacts and resources consumed throughout a product’s/ service’s/process’ life cycle starting from raw material acquisition, via production and usage steps, till waste management according to ISO 14040/44 standards.

All attributes or aspects of natural environment, human health and resources are considered by LCA, which is a comprehensive evaluation method.

>> Read more 

Higg: The Sustainability Insights Platform

 Calik is verified both for 2020 and 2021.

Higg, an integrated software platform, supports for taking responsibility for the one’s entire impact, by considering energy, waste, water and working conditions from raw materials to products, from mills to stores.

>> Read more

Customs-Trade Partnership Against Terrorism (C-TPAT)

In order to secure and facilitate the movement of legitimate international trade, a U.S. Customs and Border Protection (CBP) voluntary trade partnership program is existing which is named as Customs-Trade Partnership Against Terrorism (C-TPAT). In this program CBP and members of the trade community partner up. 

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Sedex – SMETA

A social audit is one of the best ways to understand the working conditions at a supplier site. An auditor physically attends the site – or workplace – of a business, enabling the auditor to assess the conditions on the ground.

Social audits enable businesses to assess their suppliers, monitor health and safety for workers, and signal zero tolerance of human rights abuses such as child and forced labour. Once an audit is complete, buyer and supplier businesses can work together to address any issues, based on a Corrective Action Plan (CAPR).

 SMETA (Sedex Members Ethical Trade Audit) assesses a site based on their organisation’s standards of labour, health and safety, environment and business ethics. Sedex believes these are key areas for assessing an organisation’s responsible business practices and meeting social compliance.

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Nordic Swan Ecolabel

Nordic Swan Eco-labelled textiles have to comply with a range of environmental, health and quality requirements. The fiber production as well as the use of chemicals during manufacturing are core issues for the criteria. By both limiting values and prohibiting some substances that are harmful to health and the environment, the requirements for chemical usage is identified.

Thus, the criteria focuses on decreasing the environmental impact of the manufacturing while taking the health of both workers and consumers into consideration.

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US Cotton Trust Protocol

The Trust Protocol is aligned with the U.N. Sustainable Development Goals and it brings quantifiable and verifiable targets and measurement to more sustainable cotton production while driving ongoing improvement in six key sustainability criteria which are: soil carbon, land use, water management, soil loss, energy efficiency and greenhouse gas emissions.

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 Cotton USA

Family farmers who are committed to working their lands in a sustainable way, and leaving them better for the world, are included in COTTON USA. Innovative harvesting and ginning technology at COTTON USA leads to higher-quality cotton. A commitment to unparalleled transparent partnership is a part of COTTON USA as well.

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ETC Group, Tunisia

About ETC Group:

ETC is a family run business and was founded by Mohamed Mensi in 1987. He began with 40 local people in Jemmel, supplying the domestic market, and by 1991 they began to supply Italian jean brands.

Today, ETC employs 1200 people and is now a major European and UK supplier of women’s and men’s denim and casual products.

The company is developing products with a social and environmental commitment that include; organic and recycled cottons, laser machines, ozone machines, E-flow washing and environmentally friendly accessories and components.

ETC is part of the MADFORWATER project - which helps enhancing wastewater treatment and efficient reuse for irrigation and agriculture.

>> Read more

ETC Group has the following certificates:

SA 8000

The SA8000 Standard is based on internationally recognized standards of decent work, including the Universal Declaration of Human Rights, ILO conventions, and national laws. SA8000 applies a management-systems approach to social performance and emphasizes continual improvement—not checklist-style auditing. 

Elements of the Standard

  • No Child Labor
  • Forced or Compulsory Labor
  • Health and Safety
  • Freedom of Association & Right to Collective Bargaining
  • Discrimination
  • Disciplinary Practices
  • Working Hours
  • Remuneration
  • Management System

 >> Read more

ISO 9001

ISO 9001 sets out the criteria for a quality management system and is the only standard in the family that can be certified to (although this is not a requirement). 

This standard is based on a number of quality management principles including a strong customer focus, the motivation and implication of top management, the process approach and continual improvement.

Using ISO 9001 helps ensure that customers get consistent, good-quality products and services, which in turn brings many business benefits.

>> Read more

 SMETA audited

ETC Group, just like Calik Denim, has been audited in accordance by Sedex and their SMETA  (Sedex Members Ethical Trade Audit) methodology.

As an ethical trade membership organization, Sedex is working with businesses with the aim of improving working conditions in global supply chains. 

>> Read more