Double downie: separates into 2 (summer and winter weight) (Craigleith EH4)

This downie belonged to my sister but she doesn’t need it any more. It has two halves that clip together, or it could be used as a lightweight (4.5 tog) and warmer one (9 tog). Goose feather and down filling. In pretty good condition, one of two small marks (see photo).