The pack-n-go vest is sure to be a staple piece for any closet. Designed for unencumbered movement, this packable vest is made from 94 percent polyester/6 percent spandex (3.54 o/YD2) with added mechanical stretch. A great layering piece for any season with features that include a full zip styling and zippered welt pockets for storage of valuables. This piece packs easily into its own pocket for convenience on the go.