2025 Syncrasy EVO Idio Shoes - Size 11 - size guide in photosIn contrast to the other membrane technologies, the poreless compact Sympatex membrane is based on a physical and chemical principle. The water-attracting (hydrophilic) part of the membrane absorbs the moisture from the body and emits it to the outside by evaporation. The water vapor molecules are transported ourwards along the hydrophilic molecular chains. The molecular structure (hydrophilic components) of the Sympatex membrane swells in moisture and therefore provides space for water vapor transport and fast evaporation.The membrane is bonded to polyester facing and lining fabrics to form a laminate. Bonding to a variety of carrier materials is possible for the application of the membrane on different products. Only the use of a tape matched to the laminate makes the end product waterproof and a performance funcional textile.