Backrest

Since we are dealing with an ergonomic chair, the backrest clearly stands out compared to what you typically find in standard gaming models. It is divided into two main sections: one that supports the upper spine and a lower part designed for lumbar support. The latter is also flexible, allowing it to adjust dynamically to the user's posture. Naturally, that is not the only point of adjustability; the entire backrest can be raised or lowered, and there is also a tilt mechanism for added comfort.

The build combines plastic, metal, and mesh, and the last element does a great job of ensuring proper ventilation during longer sessions. As for the plastic elements, most of them are well-made and feel solid, though there are a few spots where the fit and finish could be slightly better. The metal components, on the other hand, are rock-solid and nicely finished, with no complaints there. Visually, the whole chair comes together in a clean, understated design.

Unfortunately, there is one major issue, tied to the tilt mechanism. Every time it is in use, it produces a loud, unpleasant creaking sound. Even after more than two weeks of regular use since assembly, the noise has not gone away. This is a real shame, as it seriously undermines the premium feel the chair manages to achieve in almost every other aspect.

Seat

The seat complements the backrest design nicely, both visually and functionally. It is built using mesh, plastic, and metal, and overall, it leaves a solid impression in terms of durability and resistance to everyday use or unexpected mishaps. In some spots, the mesh does not align perfectly with the base, but that is the only real complaint I have.

Well, there is also the fact that the seat is on the firmer side, which may not suit everyone but certainly isn't a pure negative, as some individuals prefer this. Moving on to the positives: stability is excellent, and so is the level of adjustability. You can tweak the seat position front to back, up and down, and even adjust the tilt. These thoughtful features are clearly at the core of the FLEX PRO design philosophy, and it shows.

Armrests

The armrests have a typical shape, but their larger size makes them stand out. Still, that is not their main selling point. The real highlight is their adjustability, and here the possibilities are almost limitless. You can move them up and down, slide them forward and backward, adjust the tilt angle, and, of course, rotate them. In short, we are talking about full 360-degree customization, which makes finding the perfect position a breeze.


The finish features leather wrapping and very firm padding—perhaps too firm for some, a trend. One minor downside is the noticeable horizontal play, which slightly detracts from the premium feel. That said, it does not impact overall stability, so functionally, there is little to complain about.

Base and Wheels

The base is a solid, one-piece metal construction, which instantly inspires confidence in its durability. It feels sturdy and should easily handle years of regular use without any issues.


The casters, on the other hand, could benefit from a soft-touch coating to better protect delicate floors from potential scratches. That said, they roll smoothly and operate surprisingly quietly—a definite plus for late-night sessions or shared spaces.

Headrest

The headrest is another element that offers a good range of adjustability. Some of the adjustments are self-adjusting, while others can be fine-tuned manually to suit your individual needs. It is mostly made of plastic and mesh, with the ThunderX3 logo subtly integrated into the design.

In terms of functionality, there is no shortage of movement. You can tilt the headrest, move it forward and backward, and adjust its height. Additionally, there is a self-adjusting mechanism for height, which automatically adapts to your posture. Despite all this flexibility, the construction remains impressively stable. Once you find the right position, you can rely on it to stay firmly in place.