Not sure what this topic has to do with the Resistance, in any case wearing red lace is a very common custom with diocesan and religious clergy in Italy especially for feasts.
Actually, its not common at all (especially for religious), hence the question:
"Rochet
An over-tunic usually made of fine white linen (cambric; fine cotton material is also allowed), and reaching to the knees. While bearing a general resemblance to the
surplice, it is distinguished from that vestment by the shape of the sleeves; in the
surplice these are at least fairly wide, while in the rochet they are always tight-fitting. The rochet is decorated with lace or
embroidered borders--broader at the hem and narrower on the sleeves. To make the vestment entirely of tulle or lace is inconvenient, as is the inordinate use of plaits; in both cases, the vestment becomes too effeminate. The rochet is not a vestment pertaining to all
clerics, like the
surplice; it is distinctive of
prelates, and may be worn by other
ecclesiastics only when (as, e.g., in the case of
cathedral chapters) the usus rochetti has been granted them by a special
papal indult. That the rochet possesses no
liturgical character is clear both from the
Decree of
Urban VII prefixed to the Roman
Missal, and from an express decision of the Congregation of Rites (10 Jan., 1852), which declares that, in the administration of the
sacraments, the rochet may not be used as a vestis sacra; in the administration of the
sacraments, as well as at the conferring of the
tonsure and the
minor orders, use should be made of the
surplice (cf. the decision of 31 May, 1817; 17 Sept., 1722; 16 April, 1831). However, as the rochet may be used by the properly privileged
persons as choir-dress, it may be included among the
liturgical vestments in the broad sense, like the
biretta or the cappa magna. Prelates who do not belong to a
religious order, should wear the rochet over the soutane during Mass in so far as this is convenient.
The origin of the rochet may be traced from the
clerical (non-
liturgical) alba or camisia, that is, the
clerical linen tunic of everyday life. It was thus not originally distinctive of the higher
ecclesiastics alone. This camisia appears first in
Rome as a privileged vestment; that this was the case in the
Christian capital as early as the ninth century is established by the St. Gall catalogue of vestments. Outside of
Rome the rochet remained to a great extent a vestment common to all
clerics until the fourteenth century (and even longer); according to various German synodal
statutes of the thirteenth and fourteenth centuries (Trier,
Passau,
Cambrai, etc.), it was worn even by
sacristans. The
Fourth Lateran Council prescribed its use for
bishops who did not belong to a
religious order, both in the church and on all public appearances. The name rochet (from the
medieval roccus) was scarcely in use before the thirteenth century. It is first met outside of
Rome, where, until the fifteenth century, the vestment was called camisia, alba romana, or succa (subta). These names gradually yielded to rochet in
Rome also. Originally, the rochet reached, like the
liturgical alb, to the feet, and, even in the fifteenth century still reached to the shins. It was not reduced to its present length until the seventeenth century."
https://www.newadvent.org/cathen/13104a.htm