By Phia

SIR. began in Sydney in 2014, founded by Nikki Campbell and Sophie Coote as a contemporary womenswear label built around relaxed elegance and clean, minimal silhouettes. Campbell and Coote launched SIR. to fill a gap for minimal wardrobe staples inspired by the Australian lifestyle, earning the label international acclaim. The name spells out its three pillars: separates, intimates and ready-to-wear. SIR. describes its work as easy-to-wear wardrobe staples under a modern lens, with minimal silhouettes central to its approach. The label sells through its own online shop, where shoppers can browse its latest collections. Phia can compare SIR. prices and sale offers, test promo codes at checkout and search for SIR. pieces secondhand or through resale.

SIR the Label shopping guide

Everything you need to know to get the best deal at SIR the Label

How to redeem a SIR the Label promo code

  1. 1. Add your selected items to your shopping bag at SIR the Label.
  2. 2. Open your bag and continue to checkout.
  3. 3. Find the field labeled Promo Code or Gift Card, then enter your code and apply it.

Troubleshooting a SIR the Label promo code

  1. • Check for typos — codes are case-sensitive and can’t contain extra spaces.
  2. • Confirm the code hasn’t expired or reached its usage limit.
  3. • Some codes require a minimum spend or exclude sale items.

Expert ways to save at SIR the Label

  1. • Use the most valuable code when a retailer does not allow code stacking.
  2. • Check current sale items before applying your code.
  3. • Install Phia to automatically test available codes at checkout.

Stop overpaying at SIR the Label

Phia finds the working code — and applies it before you pay.