The phrase "autumn winter" refers to the time of year when the seasons transition from autumn (fall) to winter. It combines both seasons to describe the colder period just before winter officially begins. Full definition
Certainly, the diversity of pants designs for autumn winter 2016 - 2017 is very high. (howomen.com)
Since last year were very fashionable in this season of autumn winter 2013 they are still in trend so if you will use no one can say that you are not in fashion. (latesttrendfashion.com)
I am really looking forward to a colorful autumn winter season. (bagatyou.com)