Women's Multicoloured Willow Vest Brakeburn Harmony Willow Knitted Vest Ecru END. (GB) Willow & Root Denim Cropped Vest Women's Shirts & Blouses in Cream Harmony Navy Willow Vest Harmony. As a knit sweater vest with a V neck and no sleeves, the Willow Knit Vest is perfect for layering and adding a touch of sophistication to any outfit. Made with high quality materials, it provides comfort and durability while making a statement.