TheBlaklader Insulating jacket Evolution 4992 is an insulating jacket with excellent moisture-wicking properties. The jacket fits comfortably due to the 4-way stretch in all three layers. The lining is warm, yet lightweight and made from recycled PET bottles. The outer layer is dirt and water repellent. The jacket has an extended back and pre-formed sleeves for optimal comfort and comfort. During lower temperatures, our insulating jacket works perfectly as a second layer. This insulating jacket is made to combine with Shelljack 4998-1987, but can also be worn separately.