SIHOO B100 Se Office Chair, Executive Chair with Cotton Seat, Dual-Back Ergonomic Chair, 2D Adjustable Headrest & Flip Link Armrest, Comfort Mesh Chair for Home Office & Gaming, 265lbs, Gray

[2D Wide Headrest & Flip Link Armrest]: A chair with 2D adjustability means it offers more flexibility than a traditional one. This ergonomic chair features 2D height adjustment not only on the wide headrest but also on the flip armrest — meaning this chair fits the user, not the other way around. With such an understanding office chair at home, you'll be smiling even in your sleep. [Dual-Back Design]: A truly qualified ergonomic chair should support your head, back, waist, hips, hands, and feet. The B100 Se office chair goes beyond these five essentials by adding extra support to your back. Its lumbar pillow is not only removable — it can also function as a secondary backrest, giving you a completely new experience that perfectly fills the empty space in your lower back. This chair takes care of you better than you take care of yourself. [Cotton Seat and Silent Casters]: The seat of this office chair is made of high-density sponge, shaped to perfectly match the curves of your body. It delivers a unique sitting experience — you can stay seated for hours without fatigue, and the cushion won't lose its shape. The durability of this ergonomic chair's seat will genuinely impress you. Like any great office chair, it comes with smooth, silent caster wheels. They perform best on hardwood floors — carpets tend to cause more wear over time. [Security Certification]: For any true ergonomic office chair, passing BIFMA and SGS testing is essential — it's our promise for your safety and a testament to your trust in us. [3-Year Warranty & 30-Day Assurance]: Enjoy 30-day peace of mind with free returns, replacement parts, and friendly support—we’re here to help.