SIR. swimwear. SIR is a stone's throw from the glittering water of Sydney, so naturally the label has your busy beach-based itinerary covered with its line-up of minimalist swimwear, free from fussy details and time wasted wrestling with complicated straps. Destined for your next upcoming tropical travels, this swimsuit is shaped to a halterneck silhouette and reveals the slightest slither of skin with waist-nipping cut-outs before it's swathed in a retro romantic print swirling across its panels.