The new BioKork version of the GP1 provides ultimate ergonomics for the hand just as the rest of Ergon’s Performance Comfort series do, however the unique qualities of cork means that it is now anti-bacterial and hypoallergenic. Cork’s natural damping qualities also make it an ideal grip material, and its now density mean the resulting grip is a lot lighter. The GP1 BioKork 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 clamp can also be 100% recycled. It is all a result of Ergon’s “GreenLab” project.Ergon's packaging page on their web site:
Although these (The former packaging materials) could all be recycled, sorting them to do so was time consuming. By contrast, the new packaging uses only paper, making up its four components. Recycling is therefore extremely easy.
Although the materials have been changed, the packaging changed, one thing remains the same- That is how the Ergon grip fits the hand. Perfectly comfortable, just like my other GP1 grips are. This is my favorite grip from Ergon, and I will be putting this through its paces through the coming months to see if it holds up to everyday use and especially for mountain biking. I have these mounted to my Gun Kote covered Salsa El Mariachi single speed right now. So, stay tuned for further updates.
Note: These grips were provided at no cost to me for evaluation on this site. I am not being paid or co-erced to give a positive review and I will strive to give my honest opinions throughout the review process.