core

Longrun 421 Core Endurance Fuel. Built for the long run.

Built for the long run

ENDURANCE FUEL WITHOUT THE CRASH

  • NO JITTERS

  • REDUCED GUT ISSUES

  • NO MID SESSION CRASH

Long Run 421 takes a different approach: fewer compromises, clearer purpose, and performance that holds up when sessions get long.

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ENDURANCE

SUSTAINED ENERGY

HYDRATION SUPPORT