An armored cable features a core and an armor generally surrounding the core and having an inner diameter. The armor has a thickness of 0.001 to 0.100 times the inner diameter of the armor. In addition, the armor has corrugations with a pitch of 0.050 to 1.000 times the inner diameter of the armor. The armor has a corrugation depth of 0.010 to 0.400 times the inner diameter of the armor.