The waistcoat fashion is not only perfect to use by men only, but women could also use this fashion item to get masculine looks. This item is inspired from the inner that usually used by men before they wear their suits. The trends of waistcoat are become popular nowadays and you could wear it without complete it with the suits.
For women who want to have masculine and casual looks, they could use waistcoat fashion and combine it with plain T-shirt in white and jeans. You could also use tank top inside the waistcoat for your daily style.
Waistcoat fashion is also perfect to wear by men for attending semi-formal occasions. You could combine plain shirt, usually in white color, with black waistcoat and add tie to make it looks semi-formal. You could modify the tie that you want to choose. There are bow ties, neck tie, cravat, that you could choose to complete the outfit.
You could be creative in mixing the colors of your shirt, waistcoat and the accessories to avoid a boring and plain appearance. If you are still confused about mixing and matching waistcoat with the other fashion items, you could get some inspirations about how to create waistcoat fashion outfits from celebrities.