The S300 features an integrated backrest and headrest that can be adjusted in height. This design ensures a natural and smooth fit for your head, neck, shoulders, and back, providing a soft and lightweight wrapping experience.

The S300 redefines ergonomic comfort with its advanced floating-wing lumbar support. This unique design mimics the shape of the human waist curve, dynamically adapting to and supporting your body and spine. It offers 6D automatic adjustment and a variable angle support range of 90° to 105°, accommodating different body types and promoting a healthy posture.

The chair's chassis features aviation-grade material shrapnel and an elastic adjustment handle. This mechanism allows precise adjustment of elasticity based on your weight, providing optimal softness and relieving back pressure, effectively reducing the sensation of gravity.

Inspired by modern automobile technology, the chair incorporates a four-spring shock absorption system into its seat cushion. This technology provides a sensation similar to a trampoline deceleration when you sit down, offering a uniquely relaxed experience. The seat cushion absorbs your body's movements, enhancing comfort.

The armrests offer extensive adjustability, including vertical and horizontal movement, front and back adjustment, inward and outward rotation, and synchronous tilting. With a multitude of functions and a thousand possible combinations, these armrests cater to your needs.

All adjustment controls, including seat height, seat depth, tilt, and tension, are conveniently integrated in one place. The intuitive and ergonomic design ensures ease of use and understanding.

The seat back and seat cushion are linked through a four-point linkage system. When you recline the backrest, the seat cushion adjusts correspondingly to maintain proper alignment. This clever design ensures that your lower back remains supported, even when reclining.

Sihoo utilizes Italian velvet materials and DuPont elastomers, combined with specialized weaving techniques, to create the chair's mesh. This mesh offers elasticity, tensile strength, and durability, providing a sitting experience on par with spring sofas.