Absolutely phenomenal running shoe at a great price. I owned a couple pairs of velocity nitro 3s and found them an excellent value and very good daily trainer. With the version 4 they have massively surpassed this. The foam is softer and provides more comfort and cushioning, but the big improvement is on the responsiveness. I never used the V3s for faster runs, but there's absolutely no issue picking up the pace in the V4. I've found the V4 to be slightly roomier in the toe box than the V3. The only thing not quite as good as the V3 is that it's slightly less stable but I definitely wouldn't call it a unstable shoe. If these work for your foot shape, I strongly recommend. It's my shoe of the year for it's all round use as a daily trainer for pretty much every situation. Read more