Ergon GP1 BioKork Grips
The GP1 BioKork 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 antibacterial and hypoallergenic.
BioKork uses 40% cork and its natural damping qualities also make it an ideal grip material, and its now density mean the resulting grip is a lot lighter. The inner core is plastic reinforced using natural fiber, which make up 40% of its mass.
German quality costs a little more, but well worth the price. Super comfortable and very durable. Greatly reduces hand numbness without loss of control. All my bikes have have Ergon grips.