Carinthia Defense 4 Sleeping Bag + Inner Sleeping Bag Size: M Regarding the Defense 4 sleeping bag, I used it once, but the mummy shape didn't suit me. I dried it in the sun and then stored it in a net in a well-ventilated place (photo 10). I used a different inner sleeping bag when I used it once. There are no particular stains or damage. The inner sleeping bag has never been used, so it is unused (photo 9). Please bid only if you understand that this is a used item and has been stored at home.