Fine mono filament is one of the most popular materials for designing hair systems. It is fine, light, breathable, and resembles scalp. It also has the advantage of being very strong. OnRite has a system for women in just about every size in fine mono filament. The Turquoise features 1.5" poly border so it is easily reduced to a smaller size if needed. The stock size of 7" X 5" is suitable for most people.