Your chest circumference

Around the fullest part of your chest, under your arms.

Arms down and relaxed. Tape level all the way round, snug, not tight.

1. 1Stand naturally and let your arms hang at your sides.
2. 2Pass the tape under your arms, across the fullest part of your chest and over your shoulder blades.
3. 3Keep it level, snug without pressing in, and read it after a normal breath out — over a thin shirt or bare skin.

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