Czechs, attention! Alza has discounted this mesh office chair. It's popular, but it has one catch

With the onset of summer temperatures comes the classic office pain — sweaty back on a leather chair. The AlzaErgo Chair Wave 1 is on Alza for 3,743 CZK after applying the code ALZADNY25. From the original 4,990 CZK, this is a 25% drop, and for someone looking for a mesh ergonomic chair under four thousand, it’s a decent offer.

Quick summary:
✅ Makes sense if you’re looking for an airy mesh chair for regular office work at a reasonable price. For the summer months, it’s a noticeable difference compared to faux leather gaming chairs — the fully mesh seat and backrest provide excellent ventilation.
⚠️ Consider that the lumbar support is not adjustable and, according to reviews, is too aggressive for some body types. Also, the backrest locks only at 90° or 135° — no middle position.
💡 For 3,743 CZK you get a fully mesh construction, synchronous mechanism, height-adjustable seat (47.5–56 cm), adjustable headrest, height-adjustable armrests, automatically adjusted rocking resistance, 60 mm wheels suitable even for carpet, and a load capacity of 130 kg.

What AlzaErgo Wave 1 Offers

The main strong point is the fully mesh construction — both the backrest and seat are made of mesh, allowing air to flow freely around the entire body. For summer workdays in an office without air conditioning, this is a noticeable difference compared to faux leather or fabric chairs. The synchronous mechanism adjusts the seat tilt according to the backrest tilt, ensuring even movement when rocking. Locking is possible in two positions — 90° for work and 135° for relaxation.

The chair has a height-adjustable headrest, which is also tiltable, height-adjustable armrests, and a seat with a range of 47.5 to 56 cm. The recommended user height is 160–190 cm and the maximum load capacity is 130 kg, covering most of the population. According to reviews, assembly takes about 15 minutes and can be done by one person with an Allen key.

What to Expect (and What Reviews Really Say)

Here, it’s important to be fair — the overall rating of 4.3 stars masks quite polarizing experiences. Most users are satisfied, but two structural problems recur.

Firstly — the lumbar support is large, prominent, and immovably fixed in one position. If you have a natural lumbar lordosis (curve), the support fits. If not, several reviewers describe that after a few hours of sitting, it starts to press and causes pain. One user literally writes: “blocked back in the lumbar region, blocked ribs, breathing difficulties“. Another reviewer advises that the lumbar support can be unscrewed with an Allen key after removing the back cover, which solved the problem for some users.

The second systemic problem — the backrest locks only in two extreme positions (90° or 135°). No middle position. You either have your back completely straight or you’re almost lying down. Several reviewers returned the chair because of this and exchanged it for a different model.

A few users also point out creaking after several months and the mesh seat sagging. However, the complaint rate is low according to Alza (0.65%), so it won’t be a widespread problem.

Mesh chair or classic upholstered — what do you prefer for all-day computer sitting?