Frequently Asked Questions
Find answers to common questions about our collections and services
How do I determine my size?
Please refer to our comprehensive Size Guide located on each product page for specific measurements and international conversions.
Can I modify or cancel my order after it has been placed?
Once an order is confirmed, it is processed immediately. Please contact our support team within 1 hour of placement for any urgent changes.
Are your fabrics sustainably sourced?
SIR. is committed to ethical production. We prioritize natural fibers and work with certified suppliers to ensure environmental responsibility.
Do you offer international shipping?
Yes, we ship to over 50 countries worldwide. Shipping costs and duties are calculated at checkout based on your location.
What should I do if an item is out of stock?
You can sign up for 'Back in Stock' notifications on the product page to be alerted via email as soon as the item becomes available.
How do I care for my SIR. garments?
Detailed care instructions are provided on the internal labels of each garment. Most of our silk and linen pieces require delicate handling or dry cleaning.