Optical fiber cable

An optical cable comprising:

• a plurality of buffer tubes;
• a plurality of optical fibers in each buffer tube;
• an inner jacket surrounding the plurality of buffer tubes, the inner jacket comprising:
• an inner layer formed from a first polymer material;
• and
• an outer layer surrounding the inner layer, the outer layer formed from a second polymer material;
• an armor layer surrounding the inner jacket;
• and
• an outer jacket surrounding the armor layer, the outer jacket formed from a third polymer material;
• wherein at least one of the first polymer material and the second polymer material is different from the third polymer material;
• wherein the third polymer material has a brittle temperature of less than −30 degrees C. as determined using ASTM D746.

An optical cable comprising:

• a plurality of buffer tubes
• a plurality of optical transmission elements in each buffer tube;
• an inner jacket surrounding the plurality of buffer tubes, the inner jacket comprising:
• an inner layer formed from a first polymer material;
• and
• an outer layer surrounding the inner layer, the outer layer formed from a second polymer material;
• an armor layer surrounding the inner jacket;
• and
• an outer jacket surrounding the armor layer, the outer jacket formed from a third polymer material;
• wherein the first polymer material is different from the second polymer material;
• wherein the third polymer material meets the cold impact resistance test at −50 degrees C. using IEC 60811-506, wherein the third polymer material has an elongation at break of at least 50% at −40 degrees C. as determined using IEC 60811-501.