Fit Chair 40090 With Base Review

  • Design - 8/10
  • Functionality - 8/10
  • Durability - 9/10
  • Warranty - 9/10
  • Overall Rating - 8.5/10


Its inability to appeal to the business market has enabled other brands and manufacturers to attain the competitive edge.

Fit-Chair 40090 with Base
List Price:$70.92
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Searching for an exercise ball to strengthen your muscles? Then the Fit-Chair 40090 with Base is your best choice.

This chair is ergonomically designed to improve the user’s posture. This means that the product is proactive in providing a proper sitting position. Whether you want to read a book or do your homework, the Fit-Chair 40090 with Base would be highly suitable since it allows you to sit and work according to your convenience.

For those looking for a core-strengthener or a calorie-burner to enhance your physical fitness, here is why you would find this fit-chair to be useful.

Burst Resistant Ball

When it comes to exercise balls, quality is highly important. If the ball is too flimsy, it is more likely to get pierced. Since the fit-chair is durable and burst resistant, you have no need to worry about your safety. Even though the ball only weighs 15 pounds, it can support up to 250 lbs. The size of the ball depends on your height and weight.

For instance, if you are 5’3” and weigh 240 pounds, you might want to settle for the 55 cm ball. On the other hand, if your exercises require you to lie on your back, then it is best to opt for a smaller ball.

Movable Base

The moveable base is one of the most impressive features of this particular fit-chair. The roller wheels on the bottom of the chair enable you to move around. This not only allows you to try various types of exercises but allows you to workout both indoors and outdoors.

The inclusion of wheels does not lead to floor damage since the wheels are manufactured to move smoothly. The peaceful movement of the wheels makes it further appealing to the user.

Proactive Sitting

The proactive sitting features of this fit-chair enable you to eliminate fatigue while improving your posture. The ergonomic design of the chair aligns your body and thereby relieves the tension and stress off your back. This enables you to perfect your sitting position.

The lack of a seat back forces your body to maintain an upright posture naturally. The design of the chair influences your body to engage constant motion even when seated. This keeps your core muscles active throughout the period and thereby increases your overall core strength while burning calories.
Fit Chair 40090 With Base Review


  • Calorie Reduction – Since your body is always making adjustments to find a comfortable and balanced position, your core muscles are working and burning calories even though you are not exercising. This constant movement of core strengthening muscles helps you to burn up to 350 extra calories per day.
  • Healthy Posture – Regardless of the absence of a seat back, the chair influences your body to maintain a proper posture. The fit-chair connects with your natural tendency to sit in an upright position and thereby affects proper spinal alignment. This need to keep the right posture and balance prompts the individual to stay alert and focused on the task. If you are purchasing the Fit-Chair 40090 with Base for office use, this advantage will enable you to improve work focus to a significant degree.
  • Improves Blood Circulation – The constant movements of the body muscles improves your blood circulation. This not only reduces the possibility of back stiffness but also helps you to alleviate the constant need to get up and stretch.


  • Lack of Back Support – Although the Fit-Chair 40090 with Base promises to achieve spinal alignment by influencing the body’s natural tendency to maintain a good posture, it is common knowledge that this is impossible when it comes to long-term use. Without proper support through a seat back, you will not be able to maintain your position for extended periods of time.
  • Lack of Professionalism – The very fact that the Fit-Chair 40090 with Base is mostly purchased for home and exercise purposes shows that the product lacks professionalism. Its inability to appeal to the business market has enabled other brands and manufacturers to attain the competitive edge.

When compared to other balance balls in the market, the dynaflex ball chair has captured the hearts of its target market. This is mainly due to the many health advantages the product offers.

If you are looking for a way to exercise without injuring yourself in the process, then the Fit-Chair 40090 Base is what you need. It’s native spinal support and balance will enable you to achieve core stability, core strength and an upright posture without shedding a single drop of sweat.