What is the right shirt size for me?
See the size chart for guidance on sizing. In general, the shirt should fit snug especially around the chest so that the electrode areas are firmly against your skin. If you are undecided between two sizes, we recommend you take the smaller one.
Measuring chest: Measure around the fullest part of your chest, just under your armpits.
Measuring waist: Measure around the narrowest part of waistline, just above your hips.