Frequently Asked Questions
Everything you need to know about your OptimumNutrition shopping experience.
How do I determine the right size for me?
We provide a comprehensive size guide on each product page. We recommend measuring your favorite garment at home and comparing it to our specifications for the perfect fit.
What is your return and exchange policy?
We offer a 30-day return window for all unworn items with original tags attached. Exchanges are free of charge, while returns for a refund may incur a small processing fee.
How long will it take for my order to arrive?
Standard shipping typically takes 3-7 business days. We also offer express shipping options at checkout which can deliver your wardrobe essentials within 1-2 business days.
What payment methods do you accept?
We accept all major credit cards including Visa, Mastercard, and American Express, as well as digital wallets like PayPal, Apple Pay, and Google Pay.
How should I care for my OptimumNutrition apparel?
To maintain the longevity of your garments, we suggest washing them in cold water with similar colors and air drying whenever possible. Specific care instructions are located on the interior label.
Do you ship internationally?
Yes, we ship to over 50 countries worldwide. Shipping costs and delivery timelines vary depending on your location and will be calculated during the checkout process.