Mus & Bombon has several certificates to show that they use sustainable materials in their collections. One of these is the OEKO-Tex certificate. OEKO-Tex checks the presence of chemicals in the clothes so that they are completely safe to wear.
In part of the collection, the brand uses recycled polyester. This material has the GRS certificate (Global Recycling Standard). This means the product is at least 50 per cent recycled polyester mixed with conventional polyester.
Other synthetic materials used by Mus & Bombon are acrylic, nylon, polyamide, and elastane. Unfortunately, these are not sustainable materials as they are made from petroleum. Synthetic materials also have the risk of releasing microplastics when washing the clothes. To prevent this, COSH! recommends washing your synthetic clothes in a GuppyFriend. This is a laundry bag that catches the microplastics, so they do not end up in the water.
Mus & Bombon also uses sustainable materials such as organic cotton. Part of the collection is made of organic cotton and also has the GOTS certificate. This means that the production process has been checked for water and chemical use. Organic cotton is sustainable as no harmful chemicals are used. Also, much less irrigation water is needed to grow organic cotton compared to conventional cotton.
Part of the collection is made of viscose. Mus & Bombon uses different types of viscose; Modal, Ecovero viscose and conventional viscose. The first two are viscose types made by the company Lenzing. Lenzing developed a sustainable production process where no chemicals can be released. Conventional viscose, however, has a very chemical production process where wood pulp is transformed into textiles. Mus & Bombon does assure that the wood pulp comes from sustainable forestry, and the brand has the FSC certificate to prove it.