Army Issue ECWCS Primaloft Level 7 Parka Trousers Pants Gray Large Regular NWT New WITH TAGS The outermost level of the ECWCS. The parka is intended to be worn during dry, extreme cold conditions. The Gen 3 Level 7 will give you the warmth you need during static conditions while keeping you dry with the water- resistant outer shell. These trousers can be worn alone during winter months being very durable and breathable.