GP5 Grip: The GP series is a perfect solution for common wrist pain during cycling. In particular the GP5 Biokork offers up a sustainable approach to ergonomics pain relief with its compound and numerous options of hand positions. Further benefits of this grip are the pure rubber compound easy to install clamping mechanism and approved back friendly ergonomics. Sustainable long-distance comfort: the GP5 BioKork from Ergon The BioKork version of the successful GP series combines ergonomics sustainability and a comfortable feel consisting of 40% cork material. The material comes from organic farming in Portugal and meets strict ecological guidelines. In the inner support 20 percent of the plastic is replaced by grass fibres. Gripping confidence is enhanced with Ergons super soft UV resistant durable compound and specific texture patterns. Additionally your riding enjoyment is elevated with a noticeable pleasing to the touch feel.