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. Our garments are designed with a contemporary fit; if you are between sizes, we recommend sizing up.
Are your materials sustainably sourced?
Yes, SUNDAY MASS is committed to ethical production. We prioritize organic cotton, recycled fibers, and responsible manufacturing processes for every collection.
Can I modify or cancel my order after it has been placed?
Orders are processed quickly to ensure prompt delivery. You may request a cancellation within 60 minutes of purchase by contacting our support team.
Do you offer international shipping?
We currently ship to over 50 countries worldwide. Shipping costs and delivery timelines are calculated at checkout based on your location.
How should I care for my SUNDAY MASS garments?
To maintain the integrity of the fabric, we recommend washing in cold water and hanging to dry. Specific care instructions are provided on the inner label of each piece.
When will out-of-stock items be replenished?
We often release limited-run collections. You can sign up for 'Back in Stock' notifications on the product page to be alerted if an item returns.