At Coster Copenhagen we focus on preserving and rebuilding for the future. we want to ensure that we, as a company, really do make a difference and pursue transparency and honesty. Therefore, instead of supporting large scale organizations, we strive to find and choose our CSR projects on our own. Projects and initiatives which we can track and visit ourselves, ensuring both effort, time and money spend being all worthwhile. We endorse transparency and love to share our stories, approaches and thoughts with our customers and stakeholders. 


CSR is important to Coster Copenhagen and the fact that the fashion industry is now the 2. most polluting industry worldwide, make us pursue every opportunity to discover new methods throughout our value chain, in order to minimize our carbon footprint, becoming more eco-friendly - contributing to a greener, more sustainable and ethical sound industry. 

Since the brand was founded, we have always had a great focus on the working environment at the production places and do a lot of research before we start a production, meet the culture in the respective places. In addition, we visit all of our manufacturers and partners at least twice a year to get an overview of the matter in relation to responsible production.


Seawool is made out of recycled plastic bottles derived from the oceans, grinded into powder with the help of oyster shells sourced from the food industry.

Finally added natural upcycled cotton fibers for maximum softness. Seawool not only leaves a minimized carbon footprint further, it provides a wide range of performance and comfort benefits. Including a soft woolen touch, insulating warmth and wrinkle resistance.

Seawool dries quickly and has anti-static properties as well as stops odor in a natural way. Seawool garments therefore stays fresh for longer, preventing unnecessary washing, all improving the lifespan of each garment. Above you see one of our many Seawool knits, timeless and classic in its expression, making it last and transcend seasons. (1 kg of Seawool approximately reuses 60 plastic bottles) 

Recycled polyester

Primarily we prefer using natural fibers such as viscose, modal and cupro in our productions. Instead, if we choose to use polyester, we primarily use recycled polyester in its pure form as the most difficult degradable are the mixed products.

There are two types of recycled polyester: the one where customers deliver their clothes that are subsequently recycled, and then it is extracted from the residues that are left after clips from other productions. We mainly use recycled polyester that comes from the sports industry.

Technically, it is the case that the excess substance is melted and re-extracted into new fibers which can then be woven and become recycled polyester.

To be reused, it must be 100% polyester

Hand knitted

It is the case in many production countries, women have to travel far and leave their families and children to work on the production companies. Therefore, for the second time, we have activated a project that goes beyond the large production factories. Instead, we have our knitwear produced directly in the rural villages in North China where the women live.

This not only results in some super beautiful and unique hand knitted knit styles, each of which is signed on a wash label inside the garment by the respective woman who has knitted the blouse.

It gives these women a real opportunity to stay with their families and children while working and making money.

QC control in India

Specifically, for our productions in India, we work with a quality control. QC is an independent external agency that constantly inspect and monitor the respective production sites.

They visit the production companies and check the actual production and working conditions This is specifically because there must be a certain distance between the sewing machines, there must be light enough for those who work. In addition, the company must provide food and sanitary conditions and safety rules must be observed in relation to the written down standards. QC does check-up 3-5 times per production. A production covers one style or print series.

In addition, GQ inspect also the fabric, our print and control the start of the first sewing line.

In addition, they check the production by random check at the end, In case of errors, they run through the entire production.