This is a Thinsulate liner specifically for the HOUSTON No. 50815 M-65 FIELD JACKET. It excels in insulation and heat retention, and the design with a lozenge quilting pattern prevents the filling from shifting. It also has pockets, which were not present in the original liner, making it easier to wear on its own. Length 74cm, Width 59cm, Shoulder Width 47cm, Sleeve Length 61cm (measured flat) Please purchase if you understand that this is a USED item. No stains, tears, or odors.