Genuine us army government issue surplus. Part of the superb us forces Extended cold weather Clothing System (ECWCS), this was the original fleece lining for the US gortex parka and trousers. Combined with first layer thermals, this is a superb cold-weather clothing system. The 'bear suit' has now been superceded by the Polartec fleece jacket and trousers but is still a very effective thermal suit.