You adjust the seat according to your body. The highly-rated AlzaErgo chair costs 3,493 CZK with a code.

For an office chair, a lever for raising the seat may not be enough. The AlzaErgo Chair Horizon 1 also allows you to adjust its depth and, when rocking, connects the movement of the seat with the backrest. The ability to customize the sitting position is the main reason to consider it. The black version is now available on Alza for 3,493 CZK with code ALZADNY30.

Quick summary:
✅ Makes sense for: An office desk where you want to adjust the seat depth and lumbar support height according to your body.
⚠️ Consider: The seller recommends a body height of 160–185 cm. Outside this range, we would not assume the chair’s suitability without trying it.
💡 The code reduces the current public price of 4,990 CZK by 1,497 CZK.

You can adjust the seat depth from 44 to 49 cm

The seat has a width of 52 cm and an adjustable depth of 44–49 cm. Moving it forwards and backwards allows you to shorten or extend the area you sit on, according to your body proportions. Vertically, the seat moves within a range of 46.5–56.5 cm. These are specific dimensions that make sense to compare with a chair you find comfortable.

The synchronous mechanism moves both the backrest and the seat in conjunction when reclining. You don’t have to stick to free rocking: the backrest can be locked in three positions. The rocking resistance is adjusted by a screw under the seat, so you can also set how easily the chair yields when you lean back.

The backrest is made of breathable mesh, while the seat has a fabric cover and cold HR foam filling. The armrests allow for height adjustment and rotation of the top part. In addition to the sitting position itself, you can also fine-tune the arm support position.

Hard casters mainly for carpet, self-assembly

Before purchasing, pay attention to the flooring in your office. The chair has hard casters, which the seller primarily recommends for carpets. While it states they can be used on other floor coverings, it also allows for casters to be replaced according to the floor type. This is where an additional adjustment to the setup might make sense.

Horizon 1 requires assembly. However, the package includes instructions, an Allen key, and everything needed for assembly, so you don’t need to purchase additional tools for setup.

What do you miss most about your current office chair?