The "Perla" sheet is made of innovative material. It is based on eucalyptus fiber impregnated with a special Kefalis solution made from Ionian sea algae extract. This treatment makes the fabric 10% stronger, 20% less crumpled, and 30% silkier. Soft, silky, pleasant to the touch Sensotex is designed for people with sensitive skin. The material is similar to natural silk, but it is more practical and easy to care for. Is an eco friendly fabric, no chlorine-containing substances are used in its production, only an organic solvent is used. It perfectly passes air 'breaths', has the ability to regulate the temperature, it is comfortable to sleep on such underwear at any time of the year, and in hot weather, touching it will give a slight coolness.