This season’s plays on shine have a mysterious, cosmic glow. Metallics and iridescents create a powdery light captured within the coatings, with the sparkle of retro reflectors enhancing the decorations’ geological textures. Lunar craters, mountainous folds of exoplanets or mineral tachism. Waterproof fabrics imitate the opulent weave and sheen of silks typical of luxury and couture. Crisp, puffy, and bursting with color, they call for generous volumes, bringing a touch of extravagance to sportswear.