Sihoo

Sihoo's US store ships free to the contiguous United States and to Canada outside Nunavut, the Northwest Territories and Yukon; it does not ship to Alaska, Hawaii or US offshore islands. Orders are processed in 1 to 2 business days and usually arrive in 3 to 5 business days in the US or 5 to 7 in Canada, from Sihoo warehouses in Pomona CA, Edison NJ, Houston TX, Atlanta GA and Woodridge IL (Mississauga and Richmond, BC for Canada). Every order is tracked. No Christmas order-by date was published on 1 November 2026, so order early in December.

Returns and replacements are free within 30 days of delivery if the chair is unused, in its original packaging and in the condition it arrived, with proof of purchase; email [email protected] to start one. Damaged, defective or wrong items must be reported within one week with photos of the box and product, and approved refunds reach the original payment method within 7 days. The Terms of Service are stricter: cancellation only within 1 hour of ordering and before 12pm Central, and return shipping deducted from refunds, so get the cost confirmed in writing first.

The 3-year limited warranty starts on the purchase date, applies to chairs bought on Sihoo's US site and activates automatically. It covers manufacturing defects, structural failures and mechanical issues, usually with a free replacement part, and excludes normal wear such as fabric fading or pilling, misuse, sun or chemical damage and non-Sihoo parts. Send the order number with photos or video of the fault.

The M series is Sihoo's budget line. The M18 pairs a cushioned seat with a mesh back, dual-adjustable lumbar support and a 126-degree recline; the M57 is all mesh with 3D armrests; the M59AS has a two-part backrest and flip-up armrests; the M56C has a wide dynamic lumbar pad; and the M102C Pro is the simplest foam-seat model.

The B series sits in the middle. The B100 offers a mesh or cushioned seat, flip-up armrests and a 135-degree recline, the B100 Pro adds responsive lumbar support and 4D armrests, and the B300 Pro adds 4D lumbar support, 6D armrests, a 2.2-inch backrest height range and 2 inches of seat-depth adjustment for users from 5'1" to 6'3".

The Doro series is the premium range. The Doro C300 has self-adaptive lumbar support, 4D armrests and a weight-sensing recline; the C300 Pro adds seat-depth adjustment and 6D armrests; the C300 Pro V2 adds 8D armrests and Sihoo's second-generation self-adaptive lumbar support; and the C300 Ultra V2 adds a four-spring seat suspension and an aluminum backrest frame. The Doro S300 has an anti-gravity recline, two lumbar pads and a five-level upper backrest. Several models come in a footrest version for $30 to $50 more. Sihoo's D03 standing desk and D01 side table were sold out on 1 November 2026.

Start with your height and how you sit. The C300 Pro V2 is listed for users from 4'11" to 6'3" and the B300 Pro and C300 Pro for about 5' to 6'3". The original Doro C300 has no seat-depth adjustment, and AppleInsider's testers found its fixed lumbar support and headrest a poor fit for people under about 5'4" or over 6'2", so shorter or taller buyers should look at the Pro models. Check the weight rating too: Sihoo lists 330 lb for the C300 Pro, S300, M57 and M18.

If you run warm, all-mesh models such as the M57, the mesh B100 and the Doro chairs keep air moving; if you prefer padding, the M18 and the cushioned B100 have foam seats. If you lean back a lot, note that the Doro chairs recline in set positions (the C300 Pro V2 at 105, 120 and 135 degrees) rather than locking anywhere, and reviewers at Tom's Guide and TechRadar found the Doro armrests move too easily when leaned on.

Allow 30 to 45 minutes to assemble a Doro chair, and keep every box and bag until you are sure, because free returns need the original packaging. The Doro chairs are large: TechRadar's reviewer felt the C300 Pro V2 looks massive next to a 48-inch desk and fits better with desks around 60 inches wide.

Prices read on 1 November 2026: M18 $169.99, M102C Pro $179.99, M56C $184.99, B100 from $199.99, M57 and M59AS $239.99, B300 Pro from $259.99, Doro C300 from $279.99, C300 Pro from $359.99, C300 Pro V2 from $429.99, S300 $599.99 and C300 Ultra V2 $609.99.

Sihoo shows a crossed-out price on most chairs, but archived copies of its product pages show those figures rising over time while the price customers paid held steady or went up. The M57, for example, sold for $198.99 in June 2025 and $239.99 on 1 November 2026. Treat the current selling price as the real price, compare it with other retailers, and do not rely on the size of the claimed saving.

For Black Friday 2026, Sihoo's page offers email subscribers a code (sent 6 November, valid to 2 December) worth $30 off orders over $200 or $50 off orders over $400, one per order and not combinable, plus an extra $30 off two chairs or $50 off three. There is no public code. To catch a genuine drop, set a price alert on In-Right's Watchlist at /watchlist/.