Willow & Root Mock Neck Sweater Vest Women's Sweaters in Ethera Buckle V Neck Vest in Wool Blend Madewell Willow & Root Striped Vest Women's Coats & Jackets in Black White Willow Vertical Quilted Tweed Vest Ravelry: #350 Willow Vest pattern by SweaterBabe. 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.