What is Modest Fashion? To put is simply Modest fashion is a concept of ‘covering’ up and concealing the features or shape of the body. This is the total opposite to clothing or styling, which may accentuate certain features of the body. There are many Modest fashion clothing types which include a range of items including, tops, trousers, skirts, dresses and jackets that are all cut and styled in a modest way. How did.