Beloved dress designer Self-Portrait only just launched its swimwear category in March 2019, but it's already a massive hit — which should come as no surprise, judging by the brand's almost cult-like following when it comes to ready-to-wear. Bringing its signature asymmetric silhouettes, bright colours and prints, one-shouldered shapes, and subtle cutouts to the beach in the same chic manner it does a cocktail party, it's killing the swimwear game.