A red knitted sweater vest with white bow appliqués is the main item of clothing shown in the image. The vest is a button-up style with a V-neck, worn over a white collared shirt. 

Sweater vests are a popular item for layering and are considered a versatile and trendy fashion staple. They can be styled in various ways, such as over a button-down shirt for a preppy look, or with a turtleneck. Some retailers sell similar vests with bow details. 

Here are some similar products: