This is Hanten (cotton jacket) most suitable for a cold season. You can shut out the cold wind by folding four bands in front. In this Hanten, you will feel as if you were in Futon. You can wear it as a loungewear which is popular in Japanese cold season. Some people in US and Europe wear it as a substitute of a Jacket, which is a casual fashion there. How about wearing Hanten made by an adept tailer in Japan and spend a warm winter? It will save you the need of an air conditioner, as an eco-friendly choice.