This is a black sleeveless sweater vest with a ribbed knit pattern throughout. It features:

V-neck design with contrasting white and gray stripe trim around the neckline, armholes, and hem.

The material appears to be a medium-weight knitted fabric, likely a blend of wool or acrylic, giving it a stretchable, form-fitting look.

On the chest, there is an embroidered white Adidas logo.

The vest has a vertical ribbed texture that adds a neat and elongated appearance.

Measurements shown in the images indicate a width of about 20 inches (50 cm) and a length of around 27 inches (69 cm), suggesting it is likely a men’s medium to large size.