Indoor/outdoor loose tube single-mode fiber cables are designed to provide flexible, high-performance fiber optic connectivity in both indoor and outdoor environments. The cables are used for a variety of applications, including long-distance data transmission and telecommunications. The fibers are contained within loose tubes filled with a gel or water-resistant material to protect the fibers from environmental factors and mechanical stress. The LSZH outer jacket is designed to withstand various environmental conditions, including UV radiation, moisture, and temperature fluctuations.