On Cloudsurfer 2 vs On Cloudsurfer 3:
Which to Choose

The headline change is cushioning character. The Cloudsurfer 2 runs on On's Helion superfoam and is tuned as a versatile do-it-all trainer: moderately soft but lively, with a springy roll-through that genuinely wakes up when you lean into a tempo effort — its happiest zone is fast 10K and steady half work around 4:45–5:15 min/km. The Cloudsurfer 3 abandons that versatility in favor of outright plushness: On's softer, more forgiving Surreal foam delivers maximum protection (a 6/6 on our cushioning scale versus the 2's 4/6) and a noticeably taller stack, but it's soft-and-forgiving rather than snappy, so it rewards relaxed cruising and gives back less when you surge. That shift shows up in pace and weight. The Cloudsurfer 2 (around 255 g) is the quicker, more eager shoe, rated 4/6 for pace and comfortable pushing uptempo; the Cloudsurfer 3 is heavier at roughly 300 g and drops to 3/6 for pace, with a soft, tall platform that starts to feel vague and sluggish once you try to run fast. Everything else is close to carried over: both are neutral with medium (3/6) stability, both are plateless with foam-driven, above-average rebound, and the drop is effectively unchanged at 7 mm on the 2 versus 8 mm on the 3. The upper is the one quieter upgrade — the 2's breathable engineered mesh becomes a plusher warp-knit on the 3. So the honest read is that the 3 is not a faster or sharper Cloudsurfer 2; it's a softer, more cushioned, heavier reinterpretation aimed at easy and long miles rather than mixed-pace training.