Adidas Supernova Prima 2 vs Mizuno Wave Sky 8:
Which to Choose

On paper these two are close enough to be cross-shopped directly, but the ride feel diverges in ways that matter. Weight is almost a wash — the Supernova Prima 2 comes in around 264g (9.3 oz) and the Wave Sky 8 around 271g (9.6 oz), so neither is a lightweight and you won't feel the ~7g gap on the run. The clearer split is stack and stability: the Wave Sky 8 sits taller, roughly 40.7mm at the heel against the Prima 2's 36.7mm, and pairs that height with Mizuno's dual-layer Enerzy foam for a softer, springier, deeper ride. That extra height is also why it rates a notch lower on stability (4/6 vs 5/6) and can feel floaty if you push the pace. The Prima 2 counters with a slightly lower, broader Boost-based platform plus Dreamstrings TPU cords that wrap and steady the foot, giving a more planted, predictable, controlled feel without a medial post. Translate that to use case and the Prima 2 is the more versatile tool — its own best-distance range stretches up through the marathon and it holds a marginally quicker comfortable zone (about 5:00–6:00 min/km), whereas the Wave Sky 8 is happiest on easy long runs, 10Ks, and halves, with a slightly more relaxed 5:30–6:30 pace window before the soft stack turns vague. Neither has a plate, so both deliver forgiving, cushioned transitions rather than snappy propulsion; the Mizuno trades a touch more ground feel for bounce, the Adidas trades a touch of plushness for stability and distance range.