SIHOO - B300 Pro Ergonomic Mesh Chair, 6D Armrest, 3D Headrest Office Chair for Adult, Seat Depth, Home & Gaming, 330lbs - Gray
About this product
You don't sit still, so your chair shouldn't either. The B300 PRO ergonomic office chair moves with you—its 4-way lumbar flexes, glides, and adjusts height to keep your lower back supported through work, meetings, gaming, or reading. The backrest adapts to your height, while the depth-sliding seat relieves thigh pressure and the breathable mesh keeps you cool and sweat-free. Weight-sensing recline delivers smooth, natural resistance without knobs. A 3D headrest cradles your neck, and 6D armrests twist, slide, or flip up for any sitting style. Built to BIFMA, SGS, and TÜV standards, backed by a 3-year warranty and 30-day returns, with 24/7 support—this mesh office chair is your all-day comfort companion for work, study, and play.
Color
GrayFeatures
[Lumbar That Moves With You]
You move all day. This ergonomic office chair moves with you. Its 4-way lumbar support goes up, down, forward, and bends with your back. It helps your lower back feel good during work, meetings, or rest. Less pressure, more comfort all day.
[Backrest That Fits Your Body]
A good chair fits you—not the other way. This mesh office chair has a backrest you can move up or down. Tall or short, you can find your best position. It helps you sit straight and keeps your whole back in touch with the chair. Easy and comfortable.
[Seat That Keeps You Cool]
You can change the seat depth to support your legs better. This helps spread your weight and reduces tiredness. The mesh lets air flow, so your back stays dry and cool. Work, study, or game for hours—this ergonomic desk chair keeps you fresh.
[Recline That Knows Your Weight]
Just lean back—no buttons needed. This chair feels your weight and gives you smooth support. It works for work time, game time, or break time. This ergonomic gaming chair and study chair moves with you, so you always feel safe and relaxed.
[Full Support for Head and Arms]
Your neck and arms need care too. The big 3D headrest holds your neck well. The 6D armrests turn, slide, lift, and flip up for typing, gaming, or sitting in different ways. This full ergonomic chair keeps your head, shoulders, and arms in a good line. Comfort all around.
Specifications
- Product Height42.95 inchesProduct Width28.57 inchesProduct Depth28.17 inchesSeat Height (From Floor)17.93 inchesMaximum Weight Capacity330 poundsMaximum Seat Height From Floor20.8 inches
Reviews
Rating 5 out of 5 stars with 1 review
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Compare similar products
You don't sit still, so your chair shouldn't either. The B300 PRO ergonomic office chair moves with you—its 4-way lumbar flexes, glides, and adjusts height to keep your lower back supported through work, meetings, gaming, or reading. The backrest adapts to your height, while the depth-sliding seat relieves thigh pressure and the breathable mesh keeps you cool and sweat-free. Weight-sensing recline delivers smooth, natural resistance without knobs. A 3D headrest cradles your neck, and 6D armrests twist, slide, or flip up for any sitting style. Built to BIFMA, SGS, and TÜV standards, backed by a 3-year warranty and 30-day returns, with 24/7 support—this mesh office chair is your all-day comfort companion for work, study, and play.
Newtral office chair is tailored for individuals who spend prolonged periods sitting, designed to meet ergonomic standards. It is the world's first chair that automatically adjusts to support your lumbar and back, whether you're leaning forward, sitting upright, or reclining. Providing comprehensive support and comfort, it alleviates discomfort associated with extended sitting. Whether for long office hours, study sessions, or leisure time, you deserves to experience the comfort and support of a Newtral ergonomic Chair.
Newtral Magic H is specially tailored for individuals who spend prolonged periods seated, meeting ergonomic standards. It is the world's first patented chair that automatically adjusts to provide support to your back, regardless of whether you're leaning forward, sitting upright, or reclining. Alleviating discomfort associated with extended periods of sitting, it offers comprehensive support and comfort for your body. Whether for long office hours, study sessions, or leisure, everyone should own a Newtral back support office chair.
SIHOO C300 Ergonomic Chair – Stylish All-Day Support for Work & Relaxation. Meet the SIHOO C300 – a stylish and intelligently designed ergonomic chair that blends seamlessly into your gaming arena, bedroom, office, or home workspace. Crafted for users of all sizes, it features a cutting-edge dynamic backrest that auto-adjusts to your spine’s natural curve, 4D armrests that move in multiple directions for perfect arm support, and a built-in retractable footrest. When work leaves you tired, simply pull out the footrest and relax right at your desk. With three tilt positions (110°-130°) and intelligent weight-sensing, the C300 ensures smooth reclining tailored to your body. TÜV and REACH/EN1335 certified, and backed by a 3-year warranty, this isn’t just a computer chair – it’s your personal comfort ecosystem.
Specs
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