Core uses Biowert grass fiber that makes up 40% of the core mass. BioKork grip rubber compound uses 40% cork sourced from sustainable forests. Unique qualities of cork means it is now antibacterial and hypoallergenic. Gel in the palm section of the grip is vegetable oil based. Forged alloy clamp for fast and secure installation. Medium length composite bar end with rubber inserts for grip and comfort that is independently adjustable in relation to the grip. Best usage for Mountain Biking, Touring, and Commuting. 229 grams.