Thom Browne's Hector vest combines fine wool and mohair in a sleeveless silhouette with a deep V-neck defined by the signature tricolor-striped ribbing. Navy blue knit frames the iconic intarsia dachshund motif at the back, while side slits secured with buttons and a grosgrain tab at the nape reflect the house's technical precision. The 'RWB' striping at the neckline and hem articulates the maison's emblematic red-white-and-blue palette. Layer over shirts for structured, graphic layering.