​The Cos fashion label and Solomon R. Guggenheim Museum are staging a retrospective exhibition of the work of the American artist Agnes Martin, whose paintings, drawings, prints and sculptures express innocence, happiness and beauty. Martin’s work has long been an inspiration for the designers working at the Swedish brand. “The incredible richness of her work has always inspired our fabrics and designs,” says Cos creative director Karin Gustafsson. Cos has created two capsule collections, Cos x Agnes Martin and Mr Porter x Cos. The collections are now available for sale. cosstores.com​​