Nowadays, a vest extender is a very viable solution when your vest isn't fitting quite the way you'd like it to. This beautiful naked cowhide leather black vest extender is made specifically for styles MV301-11, MV303-11, and MV3090-11. It was made with comfort and style in mind, and fits perfectly to the listed vests, and others should fit as well. Measure correctly. This is a great option to purchasing a complete vest to accommodate a size change. Choose sizes 42/44 to 62/64 based on size of the vest you will use them on.