Ergon GP1 BioKork Grips - Black/Tan, Lock-On, Gripshift, LargeThe renowned GP1 shape in a lighter weight and more sustainably sourced BioKork construction. The BioKork grip and vegetable oil based rubber pad make this grip hypoallergenic Grip body is 40% sustainably certified grown cork from Portugal German made rubber compound is of the purest quality Carbon Bar compatible Forged aluminum clamps Product Specifics Flange: No Color: Black Tan Length: 94 Defined Color: Black Grip Shift Specific: Yes Shape: Ergo