camel's hair
— Noun
– English
~ a soft tan cloth made with the hair of a camel
crotch hair
— Noun
– English
~ hair growing in the pubic area
cross hair
— Noun
– English
~ either of two fine mutually perpendicular lines that cross in the focus plane of an optical instrument and are use for sighting or calibration; "he had the target in his cross hairs"