Sweat Patch Validation

Inclusion Criteria: * Subject is male or female * Subject is 15-45 years * Subject is moderately-trained (engages in moderate-intensity, intermittent, or steady-state exercise at least 4 days per week for at least 1 hour at a time) * Subject is capable of moderate-intensity, intermittent exercise for 1-2 hours as assessed by recent training history * If participating in Study Session 1, 2, 3, or 4, subject has a treadmill VO2max ≥ 42 ml/kg/min if male or ≥ 38 ml/kg/min if female, as measured during the screening at the GSSI laboratory * If participating in Study Session 1, 2, 3, or 4, subject has a normal fasting blood glucose (70-110 mg/dl), as measured during the screening at the GSSI laboratory * If participating in Study Session 1, 2, 3, or 4, subject has a normal resting blood pressure (\< 140/90 mmHg), as measured during the screening at the GSSI laboratory * If participating in Study Session 1, 2, 3, or 4, subject has a normal resting and graded exercise EKG, as measured during the screening at the GSSI laboratory * If participating in Study Session 1, 2, 3, or 4, willing to be shaved at patch sites * If participating in Study Session 3 or 4, willing to undergo a nude shower by an investigator of the same sex for collection of sweat electrolytes in the whole body wash procedure * If participating in Study Session 5 or 6, subject is a trained team-sport athlete currently participating in training/competition at IMG Academy Exclusion Criteria: * Subject is pregnant (s…