Every athlete sweats.
Almost none of them know what they're losing.
Soon, you will.
Your body keeps a record. We're learning to read it.
Five numbers, measured live, while you move.
Sweat rate1.42L/h
Sodium concentration48.6mmol/L
Sodium loss1580mg/h
Fluid loss2.87L
Next intake500 ml · 750 mg
Values obscured until launch
Coming soon
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