Stylish Gray Ribbed Button Down Shirt

The top in the image is a gray, ribbed, sleeveless, button-up sweater vest with a V-neck. It is also commonly referred to as a ribbed knit button-down top, sleeveless cardigan, or sweater shell. The material is a ribbed knit fabric, which is known for its distinctive vertical lines and stretchiness. It is a versatile piece that can be worn on its own or layered.