A drivetrain - basically the entire bike - is nothing without a chain to keep it all running. That's why Campagnolo always kept this essential component in focus during the fundamental development of the gravel-specific Ekar 1x13-speed drivetrain, and treated it with appropriate prominence. But the developers at Campagnolo didn't just want the chain to work, they knew it had to be a crucial element for effective and reliable operation in the harshest environments that gravel riding can bring.
The Nickel Teflon treated C13 chain was specifically designed to operate efficiently and safely with the Narrow-Wide sprocket system. Although it is the narrowest chain Campagnolo has ever made, it is still strong, light, durable and amazingly efficient.