A relatively inexpensive hair. They may include ox, goat, squirrel, and pony hair. Natural Bristle -Coarse, strong hair that ideally has a natural curve and flagged tips. Well suited to work with heavier mediums like oils, acrylics, and tempera. White bristle comes in many grades.
Black bristle is a stiffer, economically-priced hair.
Synthetic Hair -Suitable for all media, easy to clean and ideal for use with acrylics. Fibers are manufactured in various thicknesses, each tapering to a fine point. Taklon is softer and more absorbent. Performance characteristics and durability can vary. The best synthetic brushes combine filaments of 3 or more thicknesses.