How tight you wear the bracelet is based on personal preference. Some people like to wear it loose and able to move, some like it to fit snugly and not move during exercise and activity. As the bracelets are flexible they will stretch to fit wrist sizes within the size scale.

Measure around your wrist using a piece of string or tape measure then purchase the closest maximum size to your actual wrist size, for instance your wrist measures 17cm choose the Small/Medium size. If you like a loose fit, select the next larger size than the actual measurement.

18cmSmall/Medium or Medium/Large if you prefer a looser fit