Ergon GP1 BioKork Handlebar Bicycle Grips provides ultimate ergonomics for the hand just as the rest of Ergon’s Bike Grips Performance Comfort series do, however the unique qualities of cork means that it is now antibacterial and hypoallergenic. Cork’s natural damping qualities also make it an ideal bicycle grip material, and its now density mean the resulting grip is a lot lighter. The Ergon GP1 BioKork Bike Grips uses 40% cork, sourced from sustainable forests in Portugal which is certified for its ecologically sound production. This ecological theme is continued throughout the rest of the grip. The inner core is plastic reinforced using natural fibre, which make up 40% of its mass. In place of mineral oil, the gel in the palm section of the grip is vegetable oil based. The Ergon GP1 BioKork bicycle grip clamp can also be 100% recycled. It is all a result of Ergon’s “GreenLab” initiative.