That depends on which features matter most to you. For an affordable entry point, PRO-TEC 100 and 200 are ideal. If you want adjustable seat depth, PRO-TEC 250 and 300 are a good choice. PRO-TEC 350 and 700 offer more adjustment options and 4D armrests. A headrest and a weight capacity of up to 150 kg are offered by PRO-TEC 400 and the XXL models.

Both models offer a solid ergonomic basic specification and 5-way height-adjustable armrests. The PRO-TEC 200 also features an aluminium base and a wider choice of colours. This makes the PRO-TEC 100 the especially price-focused entry point into the range.

The models with adjustable seat depth are PRO-TEC 250, 300, 350, 400, 500, 700, as well as PRO-TEC XXL fabric and XXL leather.

The adjustment ranges vary depending on the model. With 42–53 cm and 9 settings, the PRO-TEC 700 offers particularly extensive fine-tuning options.

A headrest is included on the PRO-TEC 400 as well as the two XXL models.

On the PRO-TEC 400, the headrest is height-adjustable, tilt-adjustable and foldable. The XXL models combine the headrest with especially generous seating and comfort features.

A weight capacity of up to 150 kg is offered by:

• PRO-TEC 400
  
• PRO-TEC XXL fabric
  
• PRO-TEC XXL leather

The other models are designed for 120 or 125 kg, depending on the version.

Within the classic PRO-TEC models, the PRO-TEC 700 is designed for maximum fine-tuning. Among other features, it has adjustable lumbar support, 4D armrests and seat depth adjustment in 9 settings.

If you also want a headrest and especially high seating comfort, the XXL models are an interesting alternative.

The 5-way height-adjustable armrests mainly allow adjustment of the armrest height.

The 4D armrests offer significantly more options for individual positioning and are therefore particularly interesting for finer adjustment to body posture and desk height.

4D armrests are available on the PRO-TEC 350 and 700.

Both models offer entry-level seat depth adjustment and feature a synchro-relax mechanism.

The PRO-TEC 250 offers a seat depth of 46–51 cm and a contoured seat.

The PRO-TEC 300 offers a slightly greater seat depth adjustment range of 47–53 cm in 4 settings, making it particularly interesting if you want more seat depth adjustment.

Both models offer 4D armrests and adjustable seat depth.

The PRO-TEC 350 features an ergonomic backrest and a height-adjustable backrest.

The PRO-TEC 700 goes even further in terms of individual adjustment: it offers adjustable lumbar support, seat depth adjustment from 42–53 cm in 9 settings and is therefore designed for maximum fine-tuning.

The XXL models are particularly interesting for customers who want more space, generous padding and a high level of seating comfort. They offer generous features including a headrest, integrated lumbar support, 3D armrests and a weight capacity of up to 150 kg.