We’ve used Medic Alert for 13 years for my CAH daughter.  I would highly recommend it.  In fact, my diabetic sister-in-law just got one and I just got one for my mom who has recently has seizures and was diagnosed mild Alzheimers.  They are great for ANY medical condition.  Check out their website - there are many styles to choose from.  By the way, my daughter’s says "Adrenal Insufficiency - May Need Stress Steroids" and then Medic  Alert has all her particulars - meds, doctors, contacts, etc.