There is a high demand for plus size coats in the market when compared to the plus size women. So this is where you have to look for the plus sizes. In the end, people buy it online. The retailers mainly focus on the slim-fitting dresses or the slim, tight, some mainly focus on the plus sizes.
So there are retail stores in your country that sell large coats. However, when you look at the number of stores there are few. As a result, it is not possible for people to travel to the stores far away to buy a perfect plus size coat.
The last thing left is the internet. Here you can choose varieties of plus sizes so that you can buy the best one that suits you. There is also a downside in that you cannot try the dresses on, which is what you can when you go to the retail stores.