Every time you want to invest in a new piece of all- weather apparel, there are several thing to consider. First and most important, is the coat or boots suitable for the temperature in fall in winter at your location. You cannot compare mild Californian winter to upstate New York one, can you? Some piece of apparel you can wear all- year, while dawn parkas and wool coats are for winter only. Still, you can wear all-season jeans with a coat.
In other words, there are certain pieces of apparel that can be worn year round, while the coat in this outfit is for fall and winter only. Elegant ankle booties are nice and warm for the moderately cold fall days and mild temperatures at the end of the winter.