Good Cushion. Full size up.
345815
Very comfortable with good cushion. For this brand I ordered an 8, a full size up, and it was still a bit snug when wearing athletic socks. I usually fit 6.5-7 in flats/pumps and a 7-7.5 for boots (I have size 7 boots from Timberland, The North Face, Columbia). The back, covering your calves, is made of a slightly stretchy material. The boot is snug around my leg which measures 14 inch at the top of the boot. The inside front and top is lined with what you can see in the picture and the foot bed is also lined, but with a thinner soft cozy material.
3685343
I love the cushion it really does work. I use it for sitting at the computer and in the car. My only complaint is, I wanted to buy another one the next size up but Amazon doesn't carry it.
1371250
This cushion was not as large as I needed. I should have measured first. However it is well constructed and the color is great. Since the mistake was mine I will keep it and will find a standard side rocker to put it on.
2249367
Good, for what I wanted.  Uncomfortable cushions, so I added 2" of foam and recovered the seats.  For the price, it was worth it.
1538458
Nice cushion.  Comfortable and made of quality materials. Check the dimensions before purchasing-- the long oval shape makes it impractical for many seats. It's best used on a flat bench, I would think.
1502055
The cushion is well made and is as described. I haven't had much of an opportunity to use it, so giving it 3 stars for now.
2487161
This is a nice seat cushion if you don't want something thick. I find it to be comfortable, with nice features and good construction, and that it tends to conform to your bottom.

The cushion is well shaped for the average chair, and is about 2 inches thick when new. I say "when new", because it does tend to squish down where you sit. Some reviewers have complained about this, but to me, it just means the pad is conforming to my shape. It is still comfortable.

I like the construction, with nice solid seams all around, and good quality polyester that manages to feel good. It doesn't breathe like cotton, but is acceptable. I've been using it for several days now.

One nice touch is the dual Velcro straps, so you can secure it to a chair. The straps are on the left and right rear of the cushion, which isn't much use for most office chairs, but is ideal for rocking chairs and that sort where there is somewhere to connect it.

Summary: If you want something that constantly springs back, look elsewhere. For a conforming pad, this is a good option. Recommended.

Please note that I received this free of charge, so I could review it.
890588
Good combination of cushion and stability, somewhere between a minalimist and running shoe.
I normally wear NB 2e and found this to be a little smaller.
3077566
Really nice and cushioned.  The attached roll up strap is super handy!
4963884
Awesome cushion. I agree with the other comments about fit - runs slightly small. I wear 9.5 normally for a 2E width. I had to buy 10.

Upper is very flexible and elastic. So, it lets you flex your toes well. Very light and comfortable.
3039405
I am enjoying  my new cushion very much. I would have liked one just a little smaller in dimensions, but this is okay, and much better for me than the alternative, which I couldn't find anywhere. Would have liked the same amount of cushioning, but about 1 1/2 inches less wide and less deep.
3334012
This lumbar cushion is a great size. Some complain of how hard it is, but I would encourage them to use it for a week or two before giving up! After a week, mine softened a lot. I actually liked it best when it was a bit harder, but it is still a nice cushion. I'm glad I bought it. I can't say how it compares to cheaper alternatives, but I can say that I think this one will last for a long time. Great for car travelling or desk use. (would be nice to have a strap to put around it and chair when at desk but other than that, it's perfect.
1195647
Pretty good. I had some doubts because of a few negative reviews, but after about 6 months its held up well. Its hard to find a seat cushion of the right thickness, comfort, width and length. If a cushion is too thin it just flattens, too hard you are left uncomfortable,etc. I do have some gripes though. I use this on an office chair in my study. The seat bottom is fairly wide and reasonably deep. This cushion could stand to be 2-3 inches wider and not just because of my chair, but also if you are a wide bodied person it may not give you enough width. My weight tends to range between 185-190lbs, but I could see that if someone was far heavier than me then this might indeed flatten out. My other gripe is that the cover could be made better. The cover could be a little thicker. It would also be nice to just throw it in the wash and dryer, but the label warns you that it will shrink. So I'm stuck handwashing it and air drying. I would probably buy this again, since the couple of other cushions I've tried have not worked out. I just wish it was a little wider.
768484
Package and assembly were great. Nicely finished and great for price, Suggest to improve cushion.
2808010
Overall decent sock; however, it had more cushioning than I normally like. Wish it fit a little more snug on my foot too.
2997221
Fits just right.  Lots of heal cushion with out losing lateral stability.
2167749
Fit as expected, a nice surprise was the extra cushion in the heel (either I didn't read about it, or it wasn't listed... nice either way).  Very comfortable and as advertised... good value for the price, even if it cost a little more.