Dior Classic Monogram Collection Black-Grey Colorblock Retro Slides. The upper is made of full-grain cowhide with an all-over monogram embossed craft, and the sole is equipped with a non-slip and wear-resistant rubber outsole. It is retro, luxury-stylish and extremely comfortable to wear. As one of Dior’s enduringly popular hit styles, it is deeply favored by fashion influencers and bloggers around the world. It perfectly matches denim and casual dresses in summer, and is an eye-catching, versatile luxury street-style classic for street outings.