The Gen 3 Level 6 is part of the Extended Cold Weather Clothing System (ECWCS).
  
The level 6 is constructed with two layer Gore-Tex and seam-sealed throughout.  

It is a waterproof, windproof, and breathable barrier designed to be worn as a light weight shell layer over other levels in moderate to cold and wet or windy conditions. 

The level 6 is ideal for anyone who needs to carry their gear over changing climate conditions.  

It is capable of delivering the waterproof, windproof and breathable level of protection against the elements with 50% less bulk than previous systems.  

When folded, its smaller and lighter then a standard ACU of the same size.  

The level 6 also incorporates near infrared signature reduction technology.