Abrasive substances used for 'organic' brake pads are usually made from fibres obtained from glass, rubber, carbon/Kevlar® or Twaron® combined with fillers and temperature-resistant synthetic or natural resin. These brake pads have a reputation for being softer and quieter, but they also have a reputation for being fast-wearing and creating more brake dust. They also tend to rub more after exposure to high temperatures. Designed for amateur and beginner cyclists.