Frequently Asked Questions

Everything you need to know about OISELLE gear, shipping, and our community.

How do I determine the best size for my running gear?

We provide a comprehensive size guide on every product page. Since our high-performance fabrics vary in compression, we recommend checking the specific 'Fit Notes' for each item to see if it runs true to size or requires sizing up.

What is your return policy for athletic apparel?

We offer a 30-day return window for all unwashed and unworn items with original tags attached. Please note that for hygiene reasons, underwear and certain hydration accessories are final sale.

How should I care for my OISELLE technical fabrics?

To maintain the integrity of moisture-wicking fibers, we recommend machine washing in cold water with like colors and hanging to dry. Avoid fabric softeners and bleach, as they can clog the fabric pores and reduce breathability.

Do you offer international shipping?

Yes, we ship to athletes worldwide. International shipping rates and delivery timelines are calculated at checkout based on your location and local customs regulations.

Can I track my order once it has been placed?

Absolutely. Once your order ships, you will receive an email confirmation containing a tracking number. You can also monitor your shipment status by logging into your OISELLE account.

What payment methods do you accept?

We accept all major credit cards (Visa, Mastercard, American Express, Discover), PayPal, Apple Pay, and interest-free installment plans through Afterpay.