Sample Pack

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The Sample Pack combines single-serve packets of every flavor of EFS and Liquid Shot with our favorite water bottle. New to the First Endurance system? Interested in trying differe nt flavors without committing to an entire canister or tray? We’ve got you covered. 2 x EFS Single-Serve Packets 2 x Liquid Shots 1 x 550ml Elite Fly water bottle Show more