Sutana era până de curând îmbrăcămintea obișnuită a clerului răsăritean, dar și a celui occidental. În ultima vreme, mai ales în Occident, aceasta a fost abandonată în favoarea unei îmbrăcăminți mai moderne, dar clericii mai atașați de tradiție continuă să o poarte. În Biserica Ortodoxă, chiar și clericii care preferă îmbrăcămintea modernă continuă să poarte sutana in context liturgic.
Eastern practice== In Byzantine and Slavic practice there are two types of cassock: the inner cassock and the outer cassock or '' rason''. Monastics always wear black cassocks. There is no rule about coloration for non- monastic clergy, but black is the most common. Blue or grey are also seen frequently, while white is sometimes worn for [[ Pascha]].
The ''' inner cassock''' (more often simply ''cassock'') is an ankle-length garment worn by all [[Major orders|major ]] and [[Minor orders|minor ]] clergy, [[monastic]]s, and often by male [[seminary|seminarian]]s. The Russian version, called a '' podryasnik'' or '' podrjaznik'' (Russian: подрясник), is double-breasted, closely fitted through the torso and flaring out to the skirt, and with a high collar buttoned off- center.<ref>[http://www.nikitatailor.com/shop/photographs/cassock/20rw.jpg Example of a Russian cassock]</ref> The Greek version, called an ''anteri'' (αντερί ) or ''zostiko'' (ζωστικό), is somewhat fuller, gathered at the waist with a cord, and with a high collar buttoned in the front.<ref>[http://www.nikitatailor.com/shop/photographs/cassock/embrod.jpg Example of a Greek cassock]</ref> The inner cassock is usually worn by all clergy under their liturgical [[ vestments]].* The ''' outer cassock''' also called a '' ryasa'' or ''riassa'' (Russian: ряса ), or ''exorason'' (Greek: ''εξώρασον'' or simply ''ράσον'') is a voluminous garment worn over the inner cassock by [[ bishop]] s, [[ priest]] s, [[ deacon]] s, and monastics as their regular outer wear.<ref>[http://www.nikitatailor.com/shop/photographs/reassas/r20w.jpg Example of an outer cassock]</ref> It is not worn by seminarians, [[ reader]] s or [[ subdeacon]] s in the Russian tradition. In the Greek tradition, however, [[chanter]]s may wear it in church, usually with no inner cassock beneath but directly over secular clothing. The outer cassock should be worn by a priest celebrating a service such as [[ Vespers]] where the rubrics call for him to be less than fully vested, but it is not worn by any clergy beneath the [[ sticharion]]. It may be worn with the bottoms of the sleeves turned back, which are sometimes faced in a contrasting color. The Greek version tends to be somewhat lighter weight and more fully cut than the Russian. It is originally a monastic garment.* A ''' cassock vest''' is sometimes worn over the inner cassock in cooler weather. This is a closely fitted collarless vest with patch pockets, usually falling slightly below the waist.<ref>[http://www.nikitatailor.com/shop/photographs/vest/v1w.jpg Example of a cassock vest]</ref>* A ''' cassock coat''' may be worn on very cold days, with the same cut as the outer cassock but slightly larger and of heavier material . It may or may not have a fur-lined collar. <ref>[http://www.nikitatailor.com/shop/photographs/coat/furw.jpg Example of a cassock coat]</ref> The coat is worn over the outer cassock, although many clerics may wear it in lieu of a coat on colder days.