The new GP1 BioKork provides ultimate ergonomics for the hand. It uses 40% cork, sourced from sustainable forests in Portugal which is certified for its ecologically guidelines. Cork is naturally antibacterial and hypoallergenic. Cork’s natural damping qualities make it an ideal grip material while its low density means the resulting grip is a lot lighter. The inner core is plastic reinforced using natural fiber, which make up 40% of its mass. Instead of mineral oil, the gel in the palm section is vegetable oil based. The clamp can also be 100% recycled. It is all a result of Ergon’s “GreenLab” project.