Help & FAQ

You can expect a delivery time of approximately 3–8 days.

If you're not satisfied with the product, you can return it within 30 days of receipt and get a full refund. Just make sure the chair is in good condition and in its original packaging.

Our warranty covers all manufacturing defects that may arise within 3 years from the date of delivery. During this period, we will provide replacement parts free of charge. It's important to note that warranties do not cover normal wear and tear or misuse of the product.

Yes, you can use Sihoo chairs if you’re pregnant. Their ergonomic designs, including adjustable lumbar support and seat depth, help maintain a comfortable and healthy sitting posture. However, it's always best to check with your doctor if you have specific concerns about sitting posture or any existing conditions during pregnancy.

Yes. These aren’t just task chairs — they’re proper ergonomic chairs designed for 6–8 hours of focused sitting. Models like the M57 and M18 support your posture, adjust to your body, and stay breathable throughout the day. No unnecessary extras, just the features that matter.

Yes, Sihoo chairs are suitable for gaming, especially models like the Sihoo M57 and Doro series(S300, S100, C300 Pro, C300). They offer excellent ergonomic support, adjustable armrests, and dynamic lumbar support, which are important for long hours of gaming. The breathable mesh and tilt functions also help maintain comfort during extended sessions. While Sihoo doesn't market them as "gaming chairs," their ergonomic features make them great for gaming too.

They do — and they’re all height- and angle-adjustable. If you lean back during breaks or spend time in video calls, the added neck support helps. You can also lower the headrest out of the way if you prefer a cleaner look.

The M57 gives you the most control — adjustable armrests, mesh seat, and flexible lumbar support. The M18 has a cushioned seat with simpler adjustments, for those who prefer a softer feel. The M59AS is more compact, with flip-up arms and a dual-backrest that adapts as you move — ideal for smaller setups.

Yes, the Doro S300 comes with an extended 5-year warranty, compared to only 3 years offered on our other chair options, providing added peace of mind.

We offer a 30-day free trial so you can experience the Doro S300 firsthand. If it doesn't meet your needs, you can return it for free within 30 days.

The height of the Doro-C300 can extend up to 41.34 inches, and the seat height is adjustable, ranging from 15.75 inches to 17.72 inches. While the maximum weight capacity is 300 lbs, please consider the user's body shape as a factor as well. You're welcome to try out Doro-C300, we have a 30-day free return policy!

No, the Doro-C300 is shipped and delivered unassembled. However, don't worry! We include all the necessary tools and an assembly guide inside the package. You can also check out our assembly guide video on our YouTube channel here(​https://youtu.be/IzFJSrUgLu0).