SIHOO Doro C300 Ergonomic Office Chair with Ultra Soft 3D Armrests, Dynamic Lumbar Support for Home Office Chair, Adjustable Backrest Desk Chair, Swivel Big and Tall Computer Chair Black - DORO-C

• 【Innovative Ergonomic Chair】SIHOO Doro C300 ergonomic office chair combines the latest technologies to help you maintain a comfortable posture and live a healthy lifestyle. This desk chair comes with an adjustable headrest, self-adaptive lumbar support, ultra-soft 3D armrests, a smart weight-sensing mechanism, durable and silent chair wheels, a flexible backrest, and a fully breathable mesh design, offering lasting comfort even after all day sitting. 【Dynamic Tracking System】The backrest of the SIHOO ergonomic office chair features a fully breathable mesh design and a flexible triangular frame, conforming to your back as you move your upper body from side to side. The backrest of the home high back office chair has a four-position adjustment, allowing for 6cm (2.36") of up and down movement, making it suitable for individuals of varying heights. When adjusted to the highest position, it automatically returns to the lowest level. 【Self-Adaptive Lumbar Support & 3D Coordinated Armrests】When seated in the SIHOO Doro C300 computer chair, the self-adaptive lumbar support automatically moves with your body, and the ergonomic office chair provides continuous support and comfort to your lower back, effectively alleviating back pain and protecting your health. The desk chair's 3D armrests adjust in three directions and synchronize when you recline, allowing you to relax your arms in all positions. 【Intelligent weight-sensing mechanism】SIHOO Doro C300 office chair for home features an intelligent weight-sensing mechanism that allows our chair to support up to 150 kg, adapting to the user's weight while ensuring an effortlessly balanced reclining experience. Our computer desk chair can be tilted at 110°, 120°, and 130° angles, so you can relax and rest in comfort. 【Safety Certifications】Safety is the top priority for SIHOO office chairs. The SIHOO Doro C300 ergonomic office chair holds 12 patents, passes the EU's REACH and EN1335 standards, and has German TUV certification for safety and quality. Our ergonomic office chairs also comply with US SGS BIFMA standards and feature a class 4 SGS-certified gas lift for enhanced durability and safety. We promise to offer free product accessories within the three-year warranty period from the date of purchase.