With the revolutionary materials Purerial and +Wetch, Men's max dual is elastic, durable and needs only water to create lubrication. The white layer is made of Purerial, a patented material with tiny air bubbles that give the material a nice to touch feeling just like the skin of a young woman. The + Wetch material that forms the inner layer has a magical feature, only water is needed to create a nice lubrication that mimic the natural secretion of woman, providing a smooth experience.