The Sihoo Doro S100 Ergonomic Office Chair revolutionizes workspace comfort with its dual dynamic lumbar support system, featuring a 4-spring adaptive mechanism that provides 6D automatic adjustment to perfectly conform to your body's movements. Experience 4D coordinated armrests with ultra-soft padding that adjust 7cm vertically, 3cm horizontally, and pivot 72°, while synchronizing with the reclining backrest for optimal arm positioning. The advanced independent backrest offers 5-height adjustment with high-resilience mesh, accommodating users from 150-190cm while the dual-wing lumbar system delivers targeted support. The pressure-relieving seat cushion features 5cm depth adjustment and a waterfall-edge design to maximize thigh support and circulation. Built with premium materials and backed by BIFMA/SGS certifications, this chair combines sophisticated ergonomics with durable construction, supported by our 3-year warranty with free replacement parts for any quality issues.

The Sihoo Doro S100 Ergonomic Office Chair revolutionizes workspace comfort with its dual dynamic lumbar support system, featuring a 4-spring adaptive mechanism that provides 6D automatic adjustment to perfectly conform to your body's movements. Experience 4D coordinated armrests with ultra-soft padding that adjust 7cm vertically, 3cm horizontally, and pivot 72°, while synchronizing with the reclining backrest for optimal arm positioning. The advanced independent backrest offers 5-height adjustment with high-resilience mesh, accommodating users from 150-190cm while the dual-wing lumbar system delivers targeted support. The pressure-relieving seat cushion features 5cm depth adjustment and a waterfall-edge design to maximize thigh support and circulation. Built with premium materials and backed by BIFMA/SGS certifications, this chair combines sophisticated ergonomics with durable construction, supported by our 3-year warranty with free replacement parts for any quality issues.

The Sihoo Doro S100 Ergonomic Office Chair revolutionizes workspace comfort with its dual dynamic lumbar support system, featuring a 4-spring adaptive mechanism that provides 6D automatic adjustment to perfectly conform to your body's movements. Experience 4D coordinated armrests with ultra-soft padding that adjust 7cm vertically, 3cm horizontally, and pivot 72°, while synchronizing with the reclining backrest for optimal arm positioning. The advanced independent backrest offers 5-height adjustment with high-resilience mesh, accommodating users from 150-190cm while the dual-wing lumbar system delivers targeted support. The pressure-relieving seat cushion features 5cm depth adjustment and a waterfall-edge design to maximize thigh support and circulation. Built with premium materials and backed by BIFMA/SGS certifications, this chair combines sophisticated ergonomics with durable construction, supported by our 3-year warranty with free replacement parts for any quality issues.

The Sihoo M56C Ergonomic Office Chair delivers dynamic 3D adaptive lumbar support that automatically adjusts to your movements, maintaining perfect spinal alignment whether you're working upright or reclined at 125°, while its reinforced widened backrest provides full-length tension relief. Experience premium ergonomic comfort with an oversized 2D adjustable headrest for neck support, a weight-distributing W-shaped seat cushion, and breathable mesh with soft armrests for all-day cool comfort. Built for durability, its dual-tilt mechanism locks in your preferred angle, supported by rigorously tested materials that undergo 100,000+ cycle stress tests on all key components. Backed by a 3-year warranty and 24/7 customer support, we guarantee 30-day easy returns—invest in lasting comfort with the M56C, designed to keep you supported through every workday.

The Sihoo Doro C300 Pro Ergonomic Office Chair redefines comfort with its multi-functional adjustable design, featuring a 3D headrest, adaptive lumbar support, ultra-soft 6D armrests (adjustable in five directions), seat depth adjustment, intelligent weight-sensing reclining mechanism, and breathable mesh fabric for all-day comfort. Its adaptive dynamic lumbar support moves with your body to relieve back pain, while the wider seat and 105°-135° recline range cater to taller users and relaxation needs. The height-adjustable backrest (with 2.36" travel) and flexible triangular frame provide continuous support as you shift positions. Certified by EU REACH, EN1335, German TUV, and US SGS BIFMA standards, this chair boasts 12 patents and a SGS-certified 4-stage pneumatic lift for durability. Backed by a 3-year warranty, we offer free replacement parts—experience next-level ergonomic support with the Doro C300 Pro.
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