SIR. offers timeless yet refreshing wardrobe staples that are minimal in both design and environmental impact. Established in 2014 by Nikki Campbell and Sophie Coote, the Sydney-based brand presents a refined take on casual menswear, creating wardrobes of soft, lightweight knits, structured blazers, and matching loungewear ensembles in neutral, monochrome colorways. A socially conscious attitude is integral to the label’s identity and is manifested through its commitment to supply chain traceability, ethical production, and the use of all-natural fibers. Through its sustainable collections of lasting, versatile basics, SIR. outfits the everyday with mindfulness and care.