Men's Blue Wool Blend Micro Pattern Single Breasted Jacket Savile Row Blue Botanics Silk Wool Single Breasted 4 Button Waistcoat Women's Blue Tonic Wool Embroidered Waistcoat Double Breasted Wool Coat Light Blue Wool Coat Warm Winter Etsy swellknits: One Button Waistcoat Waistcoat Single Breasted Black Gold Rozier Silk Velvet Favourbrook. Blended silk wool single breasted waistcoat in blue botanics, four buttons. Floral depth with practical warmth.