Latest User-Friendly Ergonomic Office Chair: Introducing the Atlas from COLAMY, a BIFMA-certified office chair that sets a new standard for ergonomics in the workplace. Featuring multiple adjustment options and high-quality materials, it's designed to enhance comfort and productivity in your work and daily life. Product Specifications: Seat height adjusts from 16.73" to 21.06". Seat dimensions: 19.88"(W) x 15.75"~17.72"(D) x 6.3" (Thickness). Weight Capacity: up to 300 lbs. Premium Materials: Crafted using imported mesh from South Korea and cushion cover fabrics known for their breathability, flexibility, and durability. A thick seat cushion made from high-density foam provides substantial hip support. Adjustable Features for Custom Comfort: Features a class 4 gas lift for easy seat height adjustment and a sturdy 360° swivel metal base, enhancing mobility and ensuring perfect desk alignment. Sliding Seat Cushion for Personalized Support: Seat depth adjustment offers tailored thigh support, optimizing comfort and promoting ergonomic seating positions to boost productivity and minimize discomfort during extended periods. 4-Position Tilt Lock & Tension Adjustment: Customize your reclining angle with easy tilt adjustments and modify the reclining tension for a personalized seating experience that allows for relaxation and comfort. Adjustable 4D Armrests: Experience superior arm positioning with 4D armrests that adjust to support various tasks, improving posture and flexibility, thereby enhancing overall comfort and productivity. Built-In Adjustable Lumbar Support: Integrated lumbar support is designed to encourage healthy posture and alleviate lower back strain throughout extended periods of sitting. Customizable Headrest: The adjustable headrest provides tailored neck and head support, improving posture and reducing tension across different activities. Hassle-Free Shopping Experience: Your satisfaction is important to us. Should you have any questions about this product, our dedicated COLAMY service team is ready to assist. COLAMY Ergonomic Mesh Office Chair, High Back Executive Desk Chair with Adjustable Headrest, 4D Arm, Slide Seat, Tilt Lock, Lumbar Support, Light Grey This ergonomic mesh office chair combines multiple adjustable features to provide superior comfort and support during long work hours. It includes 4D adjustable arms, allowing customization of height, width, depth, and angle for optimal arm support. The chair also features an adjustable headrest and built-in lumbar support to ensure proper alignment and reduce neck and back strain. With adjustable seat depth, seat height, tilt angle, and tilt tension, you can personalize the chair to fit your body and preferences. The breathable mesh material enhances airflow and keeps you cool, while the sturdy construction and smooth-rolling casters provide durability and easy mobility. Suitable for various settings, this chair promotes healthy sitting habits and reduces the risk of discomfort.