The Boulies EP600 Moves in More Directions Than Any Chair We Have Tested

Short version first, because it stayed true the whole time. This is the most adjustable chair we have put in front of a desk, and almost nothing about it feels like a corner was cut to get there. The mesh breathes, the lumbar tracks your back instead of sitting there as a fixed lump, the armrests move six different ways and then flip up out of the way, and the footrest slides out from under the seat like the chair was always hiding one. The things worth flagging are about fit and materials rather than quality, and we will get into both.

Boulies EP600 Ergonomic Office Chair - Best Mesh Office Chair for All-Day Adjustability

The EP600 is the new flagship of the Boulies EP line, and it is the most feature-complete chair the brand makes. It pairs an airy chenille hybrid mesh seat and back with a 4D adaptive lumbar system that moves through 50 mm of height and a 40 degree angle range, 6D armrests with 360 degree rotation and a flip-up function, a height and angle adjustable headrest, 70 mm of backrest height adjustment, 50 mm of seat depth adjustment, a multi-tilt mechanism with recline to 120 degrees and a position lock, and an integrated footrest that hides under the seat. It rides on a heavy-duty nylon five-star base with 6 cm PU casters and a Class 4 gas lift, and it carries a five-year warranty.

Check the latest price at Boulies

Boulies lists the EP600 at $489.99 with a launch price of $409.99 in the US, and at 429.99 pounds with a 359.99 pound launch price in the UK. It comes in Black and Light Grey. Our test unit is the Black hybrid mesh version. US orders ship free by FedEx out of Ontario, California, and Boulies quotes 3 to 10 business days once the chair is on its way.

Who It's For

Anyone who sits at a desk for six hours or more and keeps changing position while they do it. That is the specific thing the EP600 is built around. If you lean forward to concentrate, sit upright for calls, pull your feet up to read, and lean back when you are thinking, this chair has a setting for each of those and the transitions are quick enough that you actually use them. It is also an easy call if you run hot or work in a warm room, because there is no foam here to trap heat. And if you have been putting up with a chair whose lumbar bump sits in the wrong place for your back, the combination of 70 mm of backrest height and 50 mm of lumbar travel is the fix.

You are outside the recommended 5 feet 5 to 6 feet 3 range or near the upper end of the weight guidance, in which case a chair built for a wider size range will serve you better. If you want to recline far enough to actually sleep, the FlexiSpot Sentinel-Pro goes to 145 degrees and is the closer match for that. And if you want a soft, sink-in seat, mesh is the wrong material to shop for, so look at a thickly padded executive chair instead.

Three Weeks In, the Mesh Is Still the Reason We Keep Sitting Here

Comfort is the whole argument for this chair, and it comes down to how the mesh is used. The seat and the back are both hybrid mesh, tensioned across their frames so they flex under you and spring back, and air moves straight through the middle of the chair rather than getting trapped in foam. In practice that means you can sit through a long afternoon without that warm, stuck feeling that shows up in a padded seat around hour three. It does not go soft on you either. Mesh done badly turns into a hammock after a few weeks and you end up sitting in a dip. This has held its shape the entire time we have had it.

The seat is firm, and that is worth saying plainly because it is a preference rather than a fault. It supports rather than swallows. If you are coming from a heavily cushioned chair, the first day feels different, and by the end of the first week it is simply where you sit. What we noticed more is what stopped happening. There is no shifting around at 4pm looking for a comfortable angle, and no getting up with a stiff lower back.

The Lumbar Actually Moves With You

Most chairs at this price have a lumbar support you set once and then fight. The EP600 uses what Boulies calls a 4D adaptive system, and the difference is that it tracks. Lean forward and it follows. Sit back and it stays in contact with the curve of your spine instead of poking one spot. There is 50 mm of vertical travel and a 40 degree angle range, and you can lock it at the top or bottom of its travel if you have found one position you want to keep.

The 70 mm of backrest height adjustment is the quieter half of this system and it matters just as much. Raising or dropping the whole backrest moves the lumbar curve to meet your torso, which is what makes the chair adaptable across different body shapes rather than just different postures. Set those two together once and the support lands in the right place every time you sit down. The support is the part of this chair we noticed most once the novelty wore off, which is usually when a chair stops being new and starts being honest.

Six Ways to Move an Armrest, and a Flip Up When You Are Done

The 6D armrests are the headline feature and they earn the billing. They go up and down, slide forward and back, angle in and out, and rotate a full 360 degrees on their mounts, which means they will sit narrow and forward for typing, wide and back for leaning, or swung right out of the path. Then, when you want the space, they flip up and out of the way entirely.

That last part is more useful than it sounds. Pulling up to a desk that has a low lip, getting in and out without catching your elbow, or just freeing the space next to you all become non-events. The arm tops are padded with a soft-touch finish rather than bare hard plastic, and the release buttons have a positive click rather than the vague mushiness you get on cheaper mechanisms. They hold where you put them, which is the part that cheap 4D arms usually get wrong.

The Footrest Is the Part We Expected to Ignore

A built-in footrest is usually the feature that looks good on a spec sheet and then rattles around under the seat for the life of the chair. This one is different. It pulls out on a steel tube frame with a wide perforated platform, and it is rigid. You can put real weight on it without the flex or the creak that gives away a thin plastic tray. Push it back and it tucks fully under the seat, so from the front the chair looks like it never had one.

Paired with the recline and a tilt of the headrest, it turns the chair into a proper place to stop for ten minutes without leaving the desk. The recline runs to 120 degrees on the multi-tilt mechanism, with a position lock and a tension dial under the seat so you can set how much push it takes to lean back. That range is enough to genuinely relax in. It is not enough to lie flat, so set the expectation there.

The Headrest Lands Where Your Neck Actually Is

Headrests are easy to get wrong, and the usual failure is one that only works in a single posture and shoves your head forward in every other one. The EP600 headrest adjusts in both height and angle, and it has enough travel in each to find a real position rather than a compromise. Sitting upright it sits at the base of the skull where it should. Reclined, a quick tilt keeps it there instead of pushing the head down. It is mesh rather than a foam block, so it stays as cool as the rest of the chair.

What the Build Feels Like Once It Is Together

Assembly was quick with the included tools and the illustrated guide, and nothing about it needed a second pair of hands or a search for a video. The chair ships flat in a single carton measuring 76 by 42 by 61 cm, with a gross weight of 24 kg and a net weight of 20.7 kg, which works out at about 45.6 pounds of chair. You feel that weight in a good way once it is standing. It plants itself. No rocking, no flex through the seat frame when you shift your weight, and no creaking from the mechanism.

The 6 cm PU casters deserve a mention. They roll cleanly on carpet and on hard floor, with enough smoothness that you can push back from the desk with a foot and have the chair go where you aimed it. The gas lift is Class 4, which is the top safety class for office chair cylinders, and the seat height range is 50 to 58 cm. Where Boulies has saved money is on materials rather than assembly quality: the frame is reinforced plastic and the five-star base is heavy-duty nylon, not aluminium. Neither has shown any sign of stress or flex in our use, and the nylon base is a big part of why a chair this size is still liftable, but if you specifically want metal underneath you, that is the spec to check.

Check the Sizing Before You Order

This is the one thing we would make anyone look at twice. Boulies recommends the EP600 for users between 165 and 190 cm, which is 5 feet 5 to 6 feet 3, and the published seat is 48.5 cm wide with a 50.5 cm depth, a 49 cm backrest width and an overall width of 67.5 cm including the armrests. Those are normal proportions for an ergonomic task chair and they suit that height band well. They are not big and tall proportions.

The weight guidance is where Boulies contradicts itself. The support pages state the chair supports up to 136 kg, which is 300 pounds, while the technical dimension sheet lists a recommended user weight of less than 110 kg, or 243 pounds. Those are different claims and they are not reconciled anywhere on the product page. If you sit between those two numbers, ask Boulies directly before you buy rather than guessing.

FAQ

The Short Answer After Three Weeks

We came into this expecting the usual trade, where a chair with a long spec list turns out to have spent its budget on the list rather than the chair. The EP600 did not do that. The adjustments all work properly, the parts feel expensive, the mesh has stayed tight, and after three weeks of daily use the only notes we have are about who it fits rather than how it is made. The reinforced plastic frame and nylon base are the honest compromise, the recline stops at 120 degrees rather than going near flat, and the size guidance is narrower than the brand's own support page suggests.

If you fall inside that size band and you want the most adjustable mesh chair you can get for the money, this is an easy one to recommend. It is the chair we have kept sitting in after the testing was finished, which is usually the only review verdict that matters.