Geosynthetics, in the form of geotextiles, have been used for riverbank and coastal protection works in Asia for almost 40 years. Over that time their use has evolved from simple revetment structures to sophisticated marine mass-gravity structures. The paper explores the wide range of geotextile techniques used for riverbank and coastal protection, and sets out the key performance criteria adopted in the region for the design of these structures. Examples of use are given in order to highlight specific applications.