SIHOO B300 PRO Ergonomic Office Chair with Footrest, 300 LBS, Dark Black

【LUMBAR SUPPORT THAT MOVES WITH YOU】 Your posture never stays the same—and your lumbar support shouldn't either. The B300 PRO ergonomic office chair features a spring-assisted 4-way lumbar system with independent height adjustment, forward glide, and adaptive flex that follows every movement of your lower back. Whether you're tackling deep-focus projects, switching between virtual meetings, or stretching back to relax, it delivers continuous support that helps reduce pressure and keeps your spine comfortably aligned throughout the day.. 【A BACKREST BUILT AROUND YOU】 A truly ergonomic chair adapts to your body—not the other way around. The independently height-adjustable backrest lets users of different heights position lumbar support exactly where it's needed, encouraging natural posture and consistent full-back contact. From productive work sessions to moments of relaxation, every adjustment creates balanced support that feels customized, effortless, and comfortable.. 【SIT DEEPER. STRETCH FARTHER.】 Long hours deserve more than just a comfortable seat—they deserve room to fully unwind. The adjustable seat depth provides personalized thigh support for different leg lengths, while the retractable footrest lets you elevate your legs and relieve pressure whenever it's time to recharge. Whether you're working, reading, gaming, or taking a well-earned break, the breathable mesh seat keeps you cool, supported, and comfortable from start to finish.. 【RECLINE INTO TOTAL RELAXATION】 Switching from work mode to relaxation should feel effortless. The smart weight-sensing recline automatically adapts to your body weight, delivering smooth, balanced resistance without manual adjustments. Pair it with the retractable footrest to stretch out, reduce leg fatigue, and enjoy a more weightless reclining experience—whether you're taking a quick break, watching a movie, or simply resetting between tasks.. 【FULL-BODY SUPPORT FROM HEAD TO TOE】 Comfort isn't limited to your back—it's a full

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