As Tatra people we very much care for our environment. That is why we behave and produce our PROLEN®YARN with maximum respect to the nature in order to preserve it the way we inherited it also for our future generations. PROLEN®YARN and its production don´t pollute the enviroment (water, air, nor soil). As PROLEN®YARN is dope-dyed there is no problem of polluting effluents. Only a small amount of water is used during the production of PROLEN®YARN (in contrary to cotton where up to 11 ths. liters of water are used to produce 1 kg). The production of PROLEN®YARN and subsequently from PROLEN®YARN uses lower temperatures, i.e. less energy (up to 45%). No pesticides or toxic dyes are used to produce PROLEN®YARN. PROLEN®YARN is 100 % recyclable. PROLEN®YARN is the green yarn for our blue Planet.