IRMA energywear absorbs “infrared” waves emitted by human body and re-emits the absorbed resonance as “far infrared” waves, which then penetrate the human body, promoting blood micro-circulation, vasodilation, and muscle tissue stimulation to a depth of 5cm FIRMA energywear is made with the only yarn relying on a sophisticated polyamide 66 polymer combined with bioactive crystals incorporated into its actual DNA, which brings clear advantages over other technologies, including: Everlasting effect Its bioactive properties remain unchanged even after unlimited washings Comfort and Easy Care Polyamide microfibers are typically easy to care for and very soft to the skin. FIRMA is no different and the technology does not affect these inherent benefits Non-allergic FIRMA energywear clothing holds the Oeko-tex certificate, meaning it is free of allergens or toxins. The interaction between FIRMA and the body is entirely physical, and doesn’t involve any interactions with chemicals or treatments Easy Care and Eco-friendly FIRMA energywear is easy to wash, dries fast, and doesn’t need to be ironed. It is also a very eco friendly product to manufacture, with no residual disposal and a low environmental impact.