Balenciaga's Spring '17 collection explores the close ties between couture and fetishism - Demna Gvasalia spoke of his obsessive interest in achieving the perfect fit. A standout piece from the runway and one of the season's cult styles, these lustrous stretch-satin pants are cut for a smooth, second-skin feel and grounded by a pair of built-in stilettos. Let them peek through the slit of a midi dress or robe.