Continental Tour Tube - Presta 42mm Valve

From Continental:

High quality butyl tube with removable valve core ideal for touring, commuting and gravel riding.

All tubes are seamless and mold-cured (vulcanized) to ensure uniform roundness and improved reliability at the valve stem. Each and every tube passes a stringent 100% quality control inspection.

Hermetic Plus options contain a higher butyl amount and wall thickness which retains air longer and improves puncture resistance.