Zimmermann is a brand that's focused on style over fashion, with collections that are designed to last. They create luxury garments and accessories with a focus on using natural fibers like cotton, hemp, and silk. The silk they use comes from a vertical operation silk supplier with its own mulberry plantation and silkworm breeding farm. Their swimwear fabric comes from an Italian mill that uses sustainable practices, and they hope to start using organic cotton soon. All of Zimmermann's suppliers are signatories of their Supplier Code of Conduct, and they regularly conduct audits to ensure their employees are being treated and paid fairly.