Frequently Asked Questions
Everything you need to know about shopping with SUNDAY MASS.
When will my order ship?
All orders are processed within 2-3 business days. Once shipped, you will receive a confirmation email with a tracking number to monitor your delivery.
What is your return policy?
We offer a 14-day return window for all unworn items in their original packaging with tags attached. Please note that sale items are final sale.
How do I know which size to choose?
Each product page features a detailed size guide. Our garments generally follow a modern, relaxed fit, but we recommend measuring a similar item you own for the best comparison.
Do you ship internationally?
Yes, SUNDAY MASS ships worldwide. Shipping costs and delivery times vary by destination and will be calculated at checkout.
What payment methods do you accept?
We accept all major credit cards (Visa, Mastercard, American Express), as well as PayPal, Apple Pay, and Google Pay for a seamless checkout experience.
How should I care for my SUNDAY MASS garments?
To maintain the quality of our fabrics, we recommend washing inside out in cold water and hanging to dry. Specific care instructions are located on the inner label of each piece.