Frequently Asked Questions

Standard delivery takes 3-5 business days nationwide. Express delivery (1-2 business days) is available for an additional fee. Orders placed before 2:00 PM are processed the same day.

We don't offer returns or refunds. We offer free exchanges within 7 days of delivery — items must be unworn with tags attached. See our Exchanges page for details.

Please refer to our Size Guide with detailed measurements for each product. If you're between two sizes, we recommend sizing up for the most comfortable fit.

Free shipping is available on all orders over 1.500.000₫. Orders below this threshold will have standard shipping calculated at checkout.

Yes, once your order ships you will receive a confirmation email with a tracking number. You can use this to track delivery status directly on the carrier's website.

We use premium materials including four-way stretch compression fabric, ultra-soft Cloud fabric, and seamless knit technology. Each product page includes detailed fabric information in the description.

Yes — free size exchanges within 7 days of delivery. Items must have tags attached and be unworn. Request an exchange from your account or email hello@diolo.com.

Yes — the Diolo membership. Every set you buy and receive is a lifetime stamp; stamps never expire and are never spent. Stamps unlock vouchers, free sets and the Member, Silver, Gold, Black and 100 Club cards. Look up your card by phone number at diolo.com/membership.