Gatta is a Polish brand that produces mainly underwear and tights. Gatta brand has been on the Polish market for 25 years and has implemented the ISO 9001 quality management system. The FERAX company, to which the Gatta brand belongs, has the Oeko-Tex Standard 100 certificate, which confirms that both the final products and the raw materials used are free from harmful chemicals. In addition to underwear and tights, the brand also offers swimwear and, more recently, a collection of women's clothing, created from natural materials such as linen, viscose, tencel and cotton. These collections are called "Simplicity" and "CareU." There is also a line of Q-eko hosiery made from recycled yarns. Since 2021, the brand has been certified by GRS - Global Recycled Standard, which is an international standard that specifies the requirements for certification of recycled fibers. In order to obtain this certificate, the company had to undergo a restrictive audit and set aside a production section dedicated to GRS-compliant production. Unfortunately, the company does not inform on its website about the working conditions of people employed in production plants, as well as about the conditions of cooperation with material suppliers.