One of the main advantages of the mechanism is that the seat and backrest are not connected. When the backrest moves, the seat moves in the same direction in a certain ratio (usually 2:1 or 3:1). This gives a more pleasant sitting sensation and reduces the load on the back muscles. The chair's synchronous control mechanism allows to lock the tilt angle to the desired sitting position.
As the chair swings freely, the synchronous mechanism actively maintains an optimal and ergonomic seating angle. The firmness of the chair's oscillation can be adjusted individually according to the weight of the sitter. Office chair TOP 25 with pneumatic lift easily raises or lowers to the desired sitting
height. The Task chair TOP 25 with synchronous mechanism is recommended
Seat depth adjustment
TOP 25 has a seat depth adjustment function. This is particularly important for taller or shorter people. Additionally, this function is particularly useful when the chair is used by more than one person. This allows each user to adjust the chairs seat depth to their own individual requirements.
The correct seat depth helps to maintain correct back posture and improve well-being when sitting, the key is to know how to choose the correct chair depth. When sitting in a chair, there should be a gap of 4-8 cm between the legs and the front of the seat. The person’s feet should be at a right angle of 90° to the floor. If you have any questions about how to adjust your ergonomic chair, please contact our consultants.
Desk chair TOP 25 with 2D armrests
The armrests of this chair provide support for the arms. This reduces tension on the arms, shoulders, neck and hand muscles. This is particularly important when sitting for long periods of time. When work is finished, the armrests can be used as a support when standing up, thus reducing the strain on the pelvic muscles.
The armrests can be raised or lowered to the desired position with the push of a button. If the armrests are locked too high or too low, they may interfere with your body movements and cause discomfort.
It is recommended to choose an armrest position that allows the arms to be bent at about 90° while sitting at the desk, with the shoulder blades naturally relaxed and in a straight horizontal line. It is important to ensure that when sitting in a chair, the legs of the person should be at a straight 90° angle to the floor.
TOP 25 is an excellent ergonomic solution. If you have any questions about how to adjust your ergonomic chair, please contact our consultants.
Adjustable headrest height
People who spend a lot of time working at a computer often eventually start to feel fatigue in their shoulder and neck muscles, leading to discomfort and muscle tension. TOP 25 headrest helps relieve some of the tension and pain by providing support for the neck and upper back.
The headrest can also improve your posture. When the head is unsupported, people automatically lean forward when working at a computer, creating pressure in the neck. Sitting in not optimal position for prolonged periods of time can lead to long-term spinal problems.
A headrest provides comfort, makes the user feel better and more productive while working, and increases the likelihood of maintaining the correct posture while sitting. The headrest is height-adjustable, so everyone can find the most comfortable seating position for their height. Before buying a chair with a headrest, we recommend to make sure that the Ergonomic chair TOP 25 will provide the user with comfortable support and that seating experience will feel comfortable. We recommend visiting our showroom and trying this chair model in person.
The seat of this chair is covered with a soft tapestry fabric. This type of fabric is particularly popular because it is soft and pleasant to the touch to the skin and is available in a wide range of colours. Tapestry chairs match easily with the surrounding furniture and décor. Tapestry is a relatively hard-wearing and durable material, so the chair can be used comfortably for many years.
It is worth noting that tapestry seats are sometimes can become a popular place for cats to scratch their claws. Before buying an office chair, assess your pet’s tastes. If you think this may be a problem, we suggest you contact our experts to find a solution that works for you.
Classically shaped backrest
Office chair TOP 25 has a classically shaped backrest. This type of backrest provides comfortable back support for people of all heights and body shapes. For some customers ergonomically shaped backrests are not comfortable and sometimes cause discomfort. Classically shaped backrests are more likely to make it easier to find a comfortable sitting position. It is worth noting that the shape of the backrest is a very personal choice. If more than one person will be using this TOP 25 chair, or if you are not sure which back shape would suit you best, we recommend that you try it out live in our showroom.
11 mm castors (for soft floors)
Task chair TOP 25 is with castors for soft flooring. If the chair is used on hard flooring (wooden flooring, parquet, laminate), the surface may be damaged or scratched over time. Our specialists recommend that you purchase additional castors for hard flooring. Wheel axle 11 mm. The castors are made of thermoplastic elastomer, sometimes called thermoplastic rubber, which is a physical mixture of polymers consisting of materials with both thermoplastic and elastomeric properties. These wheels are softer and do not scratch hard flooring.
We recommend purchasing a plastic mat under the chair to protect the more sensitive floor covering. If a stable, fixed seating position is desired, we recommend chair feet instead of castors. When choosing chair castors, it is very important to pay attention to the type of use and the floor covering, if you are not sure we recommend you contact our consultants or visit our showroom.
Made in Bavaria – TopStar
TOP 25 was produced by TopStar, one of the world’s largest office chair manufacturers. The company is known for its German quality, wide range of products and focus on office ergonomic solutions. The manufacturer is a leader in the implementation of eco-friendly solutions in product packaging, with more than 8 international eco-certifications. We are proud to be a TopStar Authorized Supplier.
Desk chair TOP 25 is made of easily recyclable materials, the parts of the chair are free of impurities and can be easily separated during recycling. This ensures that after many years of use, the chair will be easily and sustainably recycled. This is a very important function of the chair in order to reduce the global footprint of the products we sell.
We see corporate environmental sustainability as our duty and responsibility. Our company is certified to the EN ISO 14001 Standard for Effective Environmental Management. This certification demonstrates that the company assesses and addresses environmental factors in its procurement, production and supply chains. The EN ISO 14001 standard is an international European standard, recognised in all EU countries, which demonstrates the company’s commitment to ecology to its customers.
Awards and certificates
German quality – GS certificate
OEKO-TEX quality certificate
TOP 25 complies with and has been awarded the STANDARD 100 by OEKO-TEX quality certificate. The purpose of the standard is to ensure that the textile material does not contain any harmful chemicals or other substances. This is particularly important as our bodies interact with the fabrics of the chair on a daily basis and children come into contact with the fabrics. OEKO-TEX certification tests various parts of the production process, from the dyeing of the material to the hemming. Random quality tests ensure that the fabrics of the product you buy are free of any harmful or harmful substances.
Blue-Angel ecology certificate
This product is also Blue-Angel certified. This certification has been created in 1978 to identify environmentally produced German products. The Blue-Angel label ensures that the company’s products have met various ecological environmental standards and indicates that Office chair TOP 25 is a more environmentally friendly choice than competitors’ products.
11 mm castors (for hard floors)
Task chair TOP 25 is available with wheels for hard flooring (wooden flooring, parquet, laminate). Castor axle 11 mm. The castors are made of thermoplastic elastomer, sometimes called thermoplastic rubber, which is a physical mixture of polymers consisting of materials with both thermoplastic and elastomeric properties. These wheels are softer and do not scratch hard flooring. If you prefer a stable sitting position on this Desk chair TOP 25, you can also purchase optional feet instead of castors. When choosing chair castors, it is very important to pay attention to the type of use and the floor covering, if you are not sure we recommend you contact our consultants or visit our showroom.Learn more.
Our specialists recommends taking breaks during work based on medical research. Taking a 15-minute break every 45 minutes to move around. Prolonged sitting in one fixed position increases the likelihood of chronic pain and cardiovascular disease. We recommend combining seated work with standing work, together at a height-adjustable table! Learn more
When you buy an office chair, we often get questions about whether the castors can be replaced with feet. Of course! An office chair with feet is stable and its functionality remains unchanged. This is especially true for workplaces where there is a small, limited working area and stability is needed: shops, warehouses and production companies. People with disabilities or elderly customers often ask for chairs with feet. Learn more.