If style is a spectrum, Dior and Stone Island rest on either end. The former descends from Christian Dior — whose last name is said to derive from d’or, or ‘of gold’ — and the Parisian atelier proudly flashes its high-fashion heritage through haute couture and high tailoring. It’s worlds away from the latter, a label named for the seafaring stories of Polish author Joseph Conrad. Known for his adventurous spirit, Conrad’s work inspired the science-oriented sensibilities of Stone Island founder Massimo Osti; on the label’s shores...