Frequently Asked Questions
Everything you need to know about your OptimumNutrition experience.
How long does shipping take?
Standard shipping typically takes 3-5 business days within the continental US. International orders may take 7-14 business days depending on the destination.
What is your return policy?
We offer a 30-day return window for all unworn and unwashed items with original tags attached. Return shipping is free for all domestic orders.
How do I determine my correct size?
Each product page features a detailed size guide with specific measurements. If you are between sizes, we generally recommend sizing up for a more comfortable fit.
Are your materials sustainably sourced?
Yes, we prioritize ethical manufacturing and use high-quality, sustainable fabrics like organic cotton and recycled polyester in over 80% of our collections.
Can I change or cancel my order after it has been placed?
Orders are processed quickly, but we have a 60-minute window where you can modify or cancel your order via your account dashboard or by contacting support.
What payment methods do you accept?
We accept all major credit cards, PayPal, Apple Pay, Google Pay, and interest-free installment plans through Klarna and Afterpay.