Sihoo M59AS Full-Mesh Ergonomic Office Chair with Flip-Up 3D Armrests

Advanced Full-Mesh Upholstery: The hard special PE and polyester mesh is resistant to high temperatures, UV rays, chemicals, and everyday wear, ensuring a non-toxic and long-lasting seating experience.

Dynamic Articulating Headrest: Crafted from PA and fiber, the headrest features 11 height adjustment positions (11 cm travel), a 25° bracket rotation, and a 45° up/down flip mechanism (22° each way) to perfectly support the cervical spine and relieve fatigue. It also includes a convenient built-in clothes hanger.

Self-Adaptive Lumbar Support: The PP and fiber lumbar pillow automatically adjusts front-to-back (1 cm stroke) while offering 4 manual height positions to maintain healthy posture continuously.

Space-Saving Flip-Up Armrests: The PA and fiber nylon armrests with soft PU pads can flip vertically up to 80°, slide forward and backward by 4 cm, and rotate horizontally by 40°, easily adapting to your typing posture or folding completely out of the way.

Reliable Recline Mechanism: Features a multi-functional steel mechanism with a cold-rolled tension spring, offering adjustable recline tension and a secure upright original-position lock with a recline angle of 110° to 125°.

Commercial-Grade Foundation: Built on a BIFMA-tested Class 3 electroplated gas lift and a 70 cm knockdown steel base capable of withstanding 1136 kg of static pressure. It rolls effortlessly on 6 cm PU casters with electroplated center caps for smooth, quiet, and floor-safe mobility.

Package Size: 74 × 35 × 53 cm | Weight: Net 16.42 kg / Gross 19.2 kg

Materials: PE and polyester special mesh, PA and fiber frames (headrest, backrest, seat shell, and armrests), PP and fiber lumbar support, PU armrest pads, and an electroplated steel base.

Care Instructions: Keep on a flat surface and limit to one occupant. Do not sit on the armrests, stand on the chair, or use it as a step ladder or pushcart. Keep hands clear of the base mechanism during adjustments to avoid pinching. Keep the mesh away from sharp objects and open flames.

Retail & B2B Pitching: When building your presentation decks for retail buyers like Costco, emphasize the BIFMA testing and the 1136 kg base static pressure test as definitive proof of its heavy-duty reliability in commercial spaces. The unique addition of the built-in clothes hanger provides an excellent talking point for corporate office utility.

Visual Focus for E-commerce: For the Shopify product page, make sure to highlight the 80° flip-up armrests in your primary image gallery, as this is a highly sought-after feature for users with compact spaces. A visual demonstration of the self-adaptive lumbar support adjusting automatically to a user's back will also help drive conversions.

Target Audience Messaging: Focus your marketing copy on the extreme durability of the PE and polyester mesh, highlighting its chemical, UV, and high-temperature resistance, making it the perfect long-term investment for sunlit home offices or demanding workplace environments.