Too thick at the bottom, but still helps.

Would be much better if it were a wedge with a full taper to the bottom. There's too much material at the bottom where the thighs sit and it's uncomfortable for more than a five minute drive, at least for me. I feel like it would cut off circulation on a longer trip. Did reduce my sciatica and back pain, though, so I'm just going to seek out a different model.

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