▁a ▁mant ling . ▁This ▁was ▁originally ▁a ▁cloth ▁worn ▁over ▁the ▁back ▁of ▁the ▁hel met ▁as ▁partial ▁protection ▁against ▁he ating ▁by ▁sun light . ▁Today ▁it ▁takes ▁the ▁form ▁of ▁a ▁st yl ized ▁clo ak ▁h anging ▁from ▁the ▁hel met . ▁Typ ically ▁in ▁British ▁her ald ry , ▁the ▁outer ▁surface ▁of ▁the ▁mant ling ▁is ▁of ▁the ▁principal ▁colour ▁in ▁the ▁shield ▁and ▁the ▁inner ▁surface ▁is ▁of ▁the ▁principal ▁metal , ▁though ▁pe ers ▁in ▁the ▁United ▁Kingdom ▁use ▁standard ▁colour ings ▁( G ules ▁double d ▁Argent ▁- ▁Red / White ) ▁regardless ▁of ▁rank ▁or ▁the ▁colour ings ▁of ▁their ▁arms . ▁The ▁mant ling ▁is ▁sometimes ▁convention ally ▁dep icted ▁with ▁a ▁ra gg ed ▁edge , ▁as ▁if ▁dam aged ▁in ▁combat , ▁though ▁the ▁edges ▁of ▁most ▁are ▁simply ▁decor ated ▁at ▁the ▁emb la zon er ' s ▁dis cret ion . ▁ ▁C ler gy ▁often ▁ref rain ▁from ▁displaying ▁a ▁hel m ▁or ▁cr est ▁in ▁their ▁her ald ic ▁achiev ements . ▁M embers ▁of ▁the ▁cler gy ▁may ▁display ▁appropriate ▁head we ar . ▁This ▁often ▁takes ▁the ▁form ▁of ▁a ▁small ▁crown ed , ▁wide ▁br im med ▁hat ▁called ▁a ▁gal ero ▁with ▁the ▁colours ▁and ▁t ass els ▁den oting ▁rank ; ▁or , ▁in ▁the ▁case ▁of ▁Pap al ▁co ats ▁of ▁arms ▁until ▁the ▁inaug uration ▁of ▁Pope ▁Bened ict ▁XVI ▁in ▁ 2 0 0 5 , ▁an ▁elaborate