Final answer:
The JSLIST, a protective military suit, can last 24 hours of total wear or 120 days in a non-contaminated environment. Sealed and stored properly, it has a shelf life of up to 5 years.
Step-by-step explanation:
The JSLIST (Joint Service Lightweight Integrated Suit Technology) is military gear designed for protection against chemical warfare. When not exposed to a chemical agent, the JSLIST is good for 24 hours of total wear, which means the cumulative time one wears the suit adds up to no more than 24 hours. Once it reaches this limit, or after 30 days from the initial wear, whichever comes first, the suit is considered expired if still not exposed to chemicals. It is also good for 120 days of wear in a non-contaminated environment. However, as long as it remains sealed in its original package and is properly stored, the JSLIST can last up to 5 years. Proper storage conditions include keeping it away from direct sunlight, extreme temperatures, and humidity.