https://www.optibelt.com/en/products/v-belts/optibelt-super-xe-power-pro-ms/
The new maintenance-free optibelt SUPER XE-POWER PRO M=S is one of the best performing drive belts on the market. The innovative design of the optibelt SUPER XE-POWER PRO M=S opens up new scope in designing frictional power transmission drives, even on the smallest pulley diameters, in extreme temperature ranges and at the highest speeds.
