Sihoo DORO-C100 Ergonomic Office Chair

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Upgrade your seating experience with the Sihoo DORO-C300, a premium ergonomic task chair rooted in human-centered engineering. The core of the chair features an innovative soft rubber triangular elastic support structure that enables the S-shaped backframe to move organically with your body, ensuring personalized bracing across all spinal zones. Crafted with fiberglass-reinforced polyamide (PA+Fiber) composite frames and upholstered entirely in high-contour wave-pattern mesh, this chair delivers a deeply restorative sitting performance alongside exceptional airflow and long-term wear resistance.

Product features

Adaptive Spine & Lumbar Support: Features 4-gear mechanical vertical elevation tracking (6 cm stroke) on the backrest, complemented by a PA and fiber lumbar node utilizing an intelligent self-adaptive tension system to champion an upright lower-back position.

3D Multi-Articulating Armrests: Configured with ultra-soft tactile face pads offering independent 2.7" (6.8 cm) height elevation, an 80° interior/exterior swivel arc, 1.3" (3.2 cm) front-to-back sliding, and 0.4" (1 cm) left-to-right shifting.

Dynamic Headrest Assembly: Supports proper cervical spine posture with 6-step height adjustment (4.5 cm stroke), combined with a 45° axial node rotation and a 25° bracket pivot.

Advanced Recline Chassis: Outfitted with a self-weight-adjusting dual-rod leverage mechanism that supports a 3-position synchronized tilt lock at 110°, 120°, and 130°.

Contoured Seat Pan: A specialized geometric curve design ensures uniform weight distribution, relieving focal pressure under the buttocks and thighs whether reclining or leaning forward.

Heavy-Duty Mobility: Verified by SGS and ANSI/BIFMA standards, the Class 4 heavy-duty pneumatic cylinder is mounted to a 27.6" (70 cm) structural steel base, rolling smoothly on 2.4" (6 cm) polyurethane (PU) casters engineered to prevent hard floor scratches.

Dimensions & Weight

Package Size: 30.3" × 21.7" × 14.9" (77 × 55 × 37.8 cm) | Weight: Net 49.4 lbs (22.4 kg) / Gross 61.9 lbs (28.1 kg)

Materials and care

Materials: PA and fiber composite structural components, high-elastic wave-pattern mesh fabric, structural steel base, and PU casters over a black frame configuration.

Care Instructions: Supports a maximum absolute weight capacity of 264.6 lbs (120 kg) for a single occupant. Keep hands clear of the under-seat structural steel mechanical paths and channels during adjustments. Never stand upright on the seat pan or use the chair as a step-stool or industrial ladder. Do not load non-occupant heavy items onto the framework.

Merchandising tips

B2B & Enterprise Procurement: When presenting this model, strongly lead with its rigorous safety testing, specifically highlighting that it passed the ANSI/BIFMA front and rear stability test protocols—including surviving 286.6 lbs (130 kg) of stacked rear counterweights without tipping.

Visual Focus for E-commerce: Use clear diagrams or lifestyle imagery to demonstrate the under-seat integrated dual-rod controls matrix, showing how users can intuitively actuate height and recline functions.

Target Audience Messaging: Position the wave-pattern mesh fabric as a key selling point for users in warm environments or high-intensity work setups, stressing its certified resistance to oil, grease, and stains to ensure the chair maintains its elegant aesthetic over time.