Stat-wise is essentially the same as the Black Church Set, with only worse Physical defenses, better Blood Defenses, minutely better Slow Poison and Frenzy Resistance and slightly lower Rapid Poison and Beasthood. The differences are so minuscule it doesn't really matter.
One of the few Attires that have different models for each sex. The Male version is more like one sees in hunter sets, whereas the Female version is more depicting of a nun's dress.
The Black Church Set is similar but with a black colour overall, and a hat. It is worn by the elementary Healing Church doctors, whilst the White Church Set is worn by superior doctors.