The inner lining is removable and can be worn separately. The lining is a silver thermal reflective lining that reflects heat and keeps you warm. The hood is removable. The size is M, but it runs large. Manufacturer's size indication: Chest: 89-95 cm Height: 167-173 cm I usually wear L, but this jacket fits perfectly in M. The color is olive green. You can wear the inner lining alone in the fall, and the outer and inner set in the winter, allowing you to use it for a long time. There are no noticeable scratches, but please refrain from purchasing if you are concerned as it is a used item.