COLAMYErgonomic Mesh Office Chair, Ergonomic Desk Chair with Footrest, Executive High Back Computer Desk Chair with Lumbar Support, Headrest and Adjustable 3D Arms, Tilt Lock and Lumbar Support-Grey

The chair arrived in great condition with only one small dent in the box. Packing was very good and removing the chair parts after opening the box was pretty easy. All parts were included as well as one of each of the screws as spares and they also included the actual tool needed to put it all together.Once assembled, I discovered that the headrest actually has 3 adjustments. You can lift the headrest up and down on a ladder ratchet style assembly, you can rotate the mesh headrest to adjust for the curvature in the back of your neck, and you can also pivot the base of the headrest assembly forward and backwards about an inch or so. Caution: When making this adjustment for the first few times, it is very, very stiff. Its best to fully assemble the headrest by attaching it to the chair, then get behind the chair, place an hand on each vertical part of the headrest just above where it bolts to the chair at the pivot point, and slowly move the headrest forwards and backwards just 1/8th of an inch at a time which will loosen it up a bit with each movement. Keep an eye on the notch at the pivot joint and don't try to move the headrest more the the notch will allow. The back of the chair where the headrest bolts on will flex a little bit, but not break. All of the rest of the adjustments on the chair provide good range including the height adjustment, back recline adjustment, back tension adjustment for reclining and the seat front to back position adjustment. Remember to "LOCK" the seat adjustment into place after setting the seat to the position that fits you best by pushing the knob in until it locks. Pull it out, set it to your desired seating position, then push the knob in to lock the seat in place. This will keep the seat assembly from moving when you move in the chair. The lumbar support depth is really not adjustable front and back, so you determine how much pressure you want on the lumbar part of the chair by moving the seat assembly front or back. You can adjust the lumber support lower back / waist pressure point up and down to fit your waist area. Some suggest aligning it with your belt when sitting.When reclining, the chair and the seat bottom both move in a proportional way, but it is not a rocking chair. If you are coming out of an executive style chair that rocked, this will be a different experience for you and takes a little getting used to. The bottom seat of the chair is pretty firm as well and the foam is cut to kind of roll off at the sides a little so you can comfortably sit on one leg or both legs.The vertical part of the chair arms are made of solid metal and are not adjustable in or out as they are fixed in place very solidly with a connection to the seat. However, the tops of the arms are 4 way adjustable. The arms will stay pretty much fixed in one position with you recline in the chair, which is a little annoying because in that position, the chairs arms, when slid all the way back, don't really provide much if any support to your arms since they are attached to the chair bottom. To help remedy this, I took my arms apart and reversed the top sliding part to extend further to the back of the chair instead of the front of the chair. This change helps a little, but still not perfect. When moved all the way forward, they are just right and when you sit in a reclined position, and move the arms all the way back after making the adjustment, they are acceptable to me. I also ordered a pair of Aloudy brand arm pads to put on the chair from Amazon and they fit and feel wonderful. Here is the link to them.https://www.amazon.com/dp/B01M8F9IYC?ref=ppx_yo2ov_dt_b_product_details&th=1Overall, its a really nice chair. It is a little heavy, but for my 6 foot 1 inch frame at 200 pounds, it is a pretty comfortable chair. Its totally quiet and nothing rattles or is lose. It turns, reclines and rolls very easily and appears to be of very good quality. The seat is fabric and the back and headrest is a mesh material that breathes very well. Time will tell how long it all holds up, but overall it appears to be a pretty high quality product. I'll be keeping it.

Dang this chair was one of the best I have ever owned for the price. The over all quality is really good; the tilt adjustments are awesome, the color of the chair matches set up perfectly, and its just really easy to use. There really isn't too much to complain about this chair it has great support and a awesome head rest. Lastly if you are big and tall dude or girl this chair is for you it is just solidly built for the price and will last a freaking long time.

TLDR;Pros:- Solid build quality & materials- HIGHLY adjustable seat depth, height, recline- Adjustable lumbar & arm rest w/ some issues- Mesh back is very comfortable- Doesn't push into my shoulders like the Leap V2 did (shoulder issues)- Mesh back also keeps me in great posture- Good headrest (my first time using one though)- Solid (but firm) Seat- Doesn't feel like the seat will wear and bottom out for years- Absolutely worth the price in every wayCons:- Headrest takes some strength to adjust- Also, after some breaking in, headrest can accidentally be pushed backward- Elbows sometimes hits the edges of the Backrest (Very hard)- Adjustable lumbar is a hard piece of plastic, so can be quite rough- Arm rests too high, I can't use them if I wanted to (I didn't plan to use them though)- Seat is firm (I like it, but others might not. Probably not fair to have this as a Con)---I was worried buying a cheaper budget chair for the time being, because my used Steelcase Leap V2 was warped and was making my shoulders issues worse. Along with the Leap's seat cushion being constantly bottomed out. I am 5'11", 162 lbs for reference.The Colamy Atlas was surprisingly great for me. AFter all the thing's I've read about cheaper mesh seats. The back rest is really comfortable and supportive. The lumbar support although a bit hard, works well for me for comfort and sitting up right.The high level of adjustability is one of the biggest things about this chair. Seat Depth adjustment is done with a knob right under your left hip, for precise and accurate fine tuning. Seat height, is great (for me) because it goes up a bit slower than my past chairs which helps me set my perfect height.For Back Recline, there is a tension knob to adjust how much strength it takes you to push back the backrest, and a stopper (I'm not sure the term for it) to lock the back rest at a certain level of recline. The small issue I have is that the first level you can lock your back rest at isn't exactly for a posture that sits straight up (closer to a 90 degree angle). But I got around this by setting the recline tension to max, and turn off the recline locking. This works because my natural strength of my back pressing onto the back rest isn't stronger than the tension that this chair provides.The lumbar support is somewhat basic. You can move it up and down, and the lumbar support itself is hard plastic, so I can imagine this be comfortable for some people. The thing is, the higher the tension is, the farther away from the back rest it is. so I have mine around 75%. It supports me, while isn't too harsh on my back. The backrest itself already helps keeps me in good posture. My only issue, is if I'm resting arms completely on my keyboard and move my arms back a little, it hits the side of the backrest, which isn't pleasant if you haven't gotten used to the chair yet.I don't have too much experience with headrests, but I'm overall happy with it. It has 3 points of adjustment, and seems to be adjustable for any position at my height. But I believe after a few weeks, I've already somewhat broken it in. If I stretch and push my head toward the backrest with some force, the backrest tilts back. It's still very useable and great for when I want to give my neck a little rest.I don't often use arm rests, and honestly the arm rests look great, but I had to remove them the very first few hours. The arm rests are too high and too far forward, so they hit my desk and prevent me from getting into my proper seating position. The left arm rest was also way too easy to accidentally move out of place. Build quality looks solid overall though. I already figured I probably wasn't going to use arm rests anymore anyways so this was in no way a dealbreaker.The casters were also perfectly what I wanted. Might not be for others. They were a tad bit harder to move the chair on carpet than the steelcase leap, but that's what I wanted because I wanted to be able to to adjust myself into just the right position without accidentally moving away from it. Freely moving with the casters when I mean to has no issues at all.