BOSS Athleisure V Eugen in Navy. Every modern man's wardrobe should have at least one gilet; the sleeveless silhouette is immeasurably versatile and an all-year-long favourite. Whether you're using this piece as a jacket liner or as a top layer, you'll benefit from its warming duck down filling, ultra-light construction and moderate water resistance. The design is signed off with BOSS branding at the chest and reverse neck. The whole style folds down and packs away neatly into a branded BOSS drawstring bag.