Table of Contents
From Comfort to a Better Fit
Creating a comfortable chair has always been a starting point for Boulies. Across the development of the Master Series, we have continued to refine materials, structure and seat design to improve how each part of the chair feels against the body.
Once those foundations are in place, the next step is to make that comfort more personal. A chair can feel comfortable in general, but to truly fit the person using it, its support needs to sit in the right places and continue to work as posture changes.
The same lumbar position will not suit everyone. People of a similar height may still have different shoulder widths, leg lengths and natural arm positions. An armrest that feels right during desk work may be less comfortable when the user leans back. Even a few centimetres can have a noticeable effect on comfort.
The Boulies EP Series was developed with these very specific needs in mind. We considered how much room a seat should offer, and how the lumbar support, seat cushion and armrests each need to adjust so that different people can find support that fits them, whether they are working or resting. As the series has evolved, these options have become more varied.
EP200: Putting Support in the Right Place
A comfortable sitting position starts with placing the main points of support correctly. Chair height is only one part of the setup. After sitting down, some people need the lumbar support a little higher, while others prefer it closer to the body. Leg length also affects how much seat depth feels right.
Introduced in 2023, the Boulies EP200 gives each of these areas its own adjustment. The lumbar support adjusts in height and depth, allowing users to change both its position and how closely it supports the body. The seat slides forward and backward to support the thighs while leaving enough space behind the knees. The 3D armrests adjust in height, forward/backward position and angle, letting the forearms rest naturally. The headrest moves in height and angle to match the head and neck, and the reclining backrest offers different positions for changing posture.
These adjustments may seem straightforward, but they are directly connected to how the chair feels every day. By allowing each area to be set separately, the EP200 helps users move beyond a one-size-fits-all sitting position and create a more natural everyday setup.
EP460: Support Beyond the Desk
Positioning the main contact points correctly is a useful starting point, although desk work is only one part of the day. Reading a document, thinking about the next step, or letting your attention drift away from the screen often means leaning back, and that changes how the body meets the chair.
Introduced in 2024, the Boulies EP460 focuses more attention on these moments between work phases.
When you lean back, your back still needs proper support. The EP460’s backrest height can be adjusted, giving people with different torso lengths more room to position the support. The lumbar support angle can also be adjusted to suit personal preference, so it sits comfortably against the lower back.
Leg relaxation is another part of the picture. Together with the reclining backrest, the footrest provides support for the legs during short breaks. Feet that usually rest on the floor get another place to settle, and the body can pause in a different position for a moment.
Beyond basic adjustability, the EP460 considers the shift from work to rest. Time in a chair includes focus, but also thinking and relaxing. These moments deserve attention too.
EP500: More Space for Different Body Types
The EP460 leads us to think more carefully about changes in posture, while the next question is how one chair could better fit people with different body types. People of a similar height can have markedly different shoulder widths, builds and resting arm positions.
Introduced in early 2026, the Boulies EP500 was designed with these differences in mind. With a roomier seat, more flexible armrests and adaptive lumbar support, it expands the choices within the EP Series.
More Room for Broader Builds
When developing the EP500, we paid particular attention to the needs of people with broader shoulders. The shoulders and back need proper support, while the arms need enough room to rest naturally at the sides.
Compared with the EP460, the EP500 increases the backrest width from 51 cm to 53 cm and the seat width from 50 cm to 51 cm. The wider backrest offers a broader area of support for the upper body, while the seat provides extra room. The inner distance between the two armrests is 51 cm, leaving enough space at the sides of the body.
These dimensional considerations are part of fit. Being able to adjust support to the right position matters, but so does whether the body can settle naturally after sitting down.
More Flexible 5D Flip-Up Armrests
Shoulder width affects where the arms naturally fall. Some people keep their elbows close to their sides, while others sit more comfortably with their arms slightly further out. If the seat offers more space, the armrests also need to be flexible enough to support naturally resting arms.
The EP500’s 5D armrests adjust in height and forward/backward position. The arm pads also rotate horizontally by 45°. Compared with the roughly 30° commonly found on standard 3D armrests, this gives more room to adjust the support direction of the forearms. Whether your arms tend to turn inward or open slightly outward, the arm pads can be angled accordingly.
Sometimes people simply need more open space at their sides. The EP500’s armrests can also be flipped up completely. When support is not needed for a moment, folding them away clears the space. This is useful when pushing the chair closer to the desk or when you want more freedom of movement for your arms.
Adaptive Lumbar Support That Moves with You
Even after finding the right settings, the body does not stay in one position. Sitting up a little straighter to focus on the screen, or leaning back slightly while thinking, changes how the lower back meets the backrest.
The EP460 allows users to adjust the angle of the lumbar support to find a suitable position, while the EP500 takes this further with self-adaptive lumbar support that responds to sitting posture, helping reduce the chance of the lower back losing contact with the support.
The wider seat accommodates different body shapes, the armrests adapt to different arm positions, and the lumbar support responds as the body moves. Together they form the EP500’s design, helping different people sit naturally and comfortably.
EP600: More Choice in How Support Feels
Space and movement both affect fit, yet people with similar builds may prefer the chair to respond differently. Some want lumbar support that moves with them, while others prefer it to remain fixed. Arm position and reclining resistance can be equally personal.
Introduced in September 2026, the Boulies EP600 brings these preferences into the adjustment process. Its lumbar support, armrests and recline controls allow the user to choose both the position of the support and how it behaves.
Lumbar Support That Moves or Stays in Place
An adaptive lumbar support can follow the body’s movements, but dynamic support is not everyone’s preference. For some people, finding the right position and keeping the support stable there feels more natural.
The EP600’s 4D Adaptive Lumbar Support offers both options. Height and angle can be adjusted to find the right lower back support. When posture changes, the lumbar support can either move with the body or be locked in place, keeping the support in a preferred position.
This choice adds a new dimension to the series. The EP500 introduced lumbar support that responds to movement, while the EP600 lets the user decide whether that movement is desirable for the way they sit.
6D Armrests for Different Arm Positions
Forearms do not remain at the same angle throughout the day. They may rest fairly level during keyboard and mouse use, tilt upwards when holding a book or controller, and move further back when the user reclines.
The EP600’s 6D armrests accommodate these changes. The arm pads rotate 360° horizontally. Compared with the EP500’s 45° range, this gives users much more freedom to adjust their orientation. Combined with height and forward/backward adjustment, users can reposition the support point according to their arm position.
Each pad can also tilt upwards independently by up to 55°, following the angle of the forearm more closely when the hands are raised. And when more space is needed, the armrests can also be flipped up and moved out of the way.
Together, these movements allow users to adjust both the position and angle of the arm support as their activity changes.
Adjustable Recline Angle and Tension
During a work break, some people just want to change their angle slightly while continuing to look at the screen. Others prefer to lean further back and let the body relax.
Even at the same angle, different people may prefer a different feel when reclining. Some like the backrest to move with a light push. Others want more resistance and a clearer sense of support as they lean back. This depends partly on body weight, but also on personal habits.
The EP600 gives users more control over these differences in preference. Once a comfortable recline position is found, the backrest can be locked. The recline tension can also be adjusted separately, so users can find the resistance that best matches their habits.
This design considers not only the position the body rests in during a break, but also whether the transition from sitting upright to leaning back feels natural and effortless.
Making Comfort More Personal
Whether a chair fits well often comes down to specific details. The lumbar support sits in the right place, the forearms rest naturally, the seat depth suits the user’s leg length, and the recline resistance feels comfortable. Different body proportions and daily routines mean that the settings each person finds “just right” will vary.
Creating a comfortable chair has always been the starting point for Boulies. The EP Series makes that pursuit more concrete. It helps different people find support that fits them, and makes both work and rest throughout the day more comfortable.
