This thing is so comfortable and light. When the box arrived I thought it might be empty or the wrong item. Out of the box it fit better than expected. I am 5'10 170 lbs. It only took a little adjusting to get it where desired. I will admit it does seem a little smaller than i imagined but only by a little. All in all I think it looks cool and I like wearing it. Its also super comfortable. I have had to test its comfort while finishing up some exams and so I ended up wearing this in a typically unrighteously back prodding chair for over an hour. I am glad to report that it did its job and kept me postured/focused on my exam that ended in a 4.0! I never thought I would need this for a better grade XDDD Good for the road and good for back support.