This is a desert night camo parka that was used in the US Military. The US Military created the Desert Night Camo to defeat Soviet Era night vision equipment. They fielded it during Operation Desert Storm.
The military designed these parkas to be worn over the combat uniform during the night. They provide an extra layer of warmth during cold desert nights. The parkas are longer and go past the waist of the wearer. There is an adjustable draw string waist and there are pocket slots to access layers worn underneath. Also, you can adjust the hood.