Renthal® Dual Series Grip Tech utilizes a double layer design, using multiple compounds to achieve breatbale comfort without sacrificing durability. A Firm compound inner core is wrapped with our Soft, Aramid or Ultratacky™ compounds to produce a soft and supple dual compound grip. Comfy and gentle on your hands, offering unbeatable control and reduced vibrations. While the Firm inner core remains tough, to yield maximum durability and install strength.