Frequently Asked Questions
Everything you need to know about shopping with OSS.
How long does shipping take?
Standard shipping typically takes 3-5 business days within the continental US. International delivery times vary by location, usually ranging from 7-14 business days.
What is your return policy?
We offer a 30-day return window for all unworn items with original tags attached. Simply visit our returns portal to generate a prepaid shipping label.
How do I know which size to choose?
Each product page includes a detailed size guide with specific measurements. If you are between sizes, we generally recommend sizing up for a more comfortable fit.
What payment methods do you accept?
We accept all major credit cards (Visa, Mastercard, American Express), PayPal, Apple Pay, and buy-now-pay-later options like Klarna and Afterpay.
Are your materials sustainably sourced?
At OSS, we are committed to ethical fashion. 80% of our current collection is made from organic cotton or recycled polyester, and we aim for 100% by next year.
Can I change or cancel my order?
Orders are processed quickly, but we can make changes within 1 hour of purchase. Please contact our support team immediately via live chat for urgent requests.