Salomon S/Lab Phantasm 2 vs Salomon S/Lab Phantasm 3 SC:
Which to Choose
Verdict
It depends on what you actually used the Phantasm 2 for. If it was your 5K–10K tempo and short-race shoe, the 3 SC isn't a like-for-like upgrade — it's a taller, plated marathon racer that behaves like a different animal, so you may want to keep the 2 for speedwork rather than replace it. But if you wanted a dedicated long-distance race weapon with carbon-plate propulsion and high cushioning, the 3 SC is a clear step up: lighter, bouncier, far more energetic, and purpose-built for the half and full marathon the 2 could only stretch to cover.
Pace
5 of 6
Cushioning
3 of 6
Responsiveness
4 of 6
Stability
3 of 6
Drop
8 mm
Support
Neutral
Plate
None
Distances
5K10KHalf
Pace
6 of 6
Cushioning
5 of 6
Responsiveness
6 of 6
Stability
2 of 6
Drop
6 mm
Support
Neutral
Plate
Carbon
Distances
HalfMarathon
At a Glance
Salomon S/Lab Phantasm 2Salomon S/Lab Phantasm 3 SC
Who Should Choose Each Shoe
Choose
Salomon S/Lab Phantasm 2
Choose the Phantasm 2 if your racing and quality work live between 5K and 10K and you want a firm, low-to-the-ground tempo tool that lets you feel the road and turn your legs over. It's the better pick for runners who dislike the vague, tippy sensation of a tall plated shoe and want something a bit more planted and controllable, including at tempo paces rather than only flat-out. If you don't need carbon-plate propulsion and rarely race beyond the half, the 2 does exactly what it was designed to do.
Choose
Salomon S/Lab Phantasm 3 SC
Choose the Phantasm 3 SC if you're an experienced, genuinely fast runner chasing half-marathon and marathon personal bests and you want the energy return of a PEBA-and-carbon super-shoe underfoot for the long haul. It rewards runners who can hold a committed quick pace and will happily trade a little stability for a lighter, bouncier, more propulsive ride. If your goal races are 21.1 km and up and you were only ever using the 2 because the longer-distance option didn't exist, this is the shoe built for that job.
Head-to-Head
The biggest difference is structural: the Phantasm 2 runs on firm, low-profile Energy Surge foam with no plate, so its rebound comes entirely from the midsole and it delivers plenty of ground feel and quick, direct transitions. The Phantasm 3 SC swaps that for a springy PEBA-based optiFOAM+ midsole wrapped around a stiff, spoon-shaped full-length energyBLADE carbon plate, which snaps you through toe-off with a propulsive roll the 2 simply doesn't have — responsiveness jumps from good to maximum, and cushioning climbs from moderate to high. The ride character diverges accordingly: the 2 is firm and honest, rewarding a committed forefoot stride but feeling a touch flat at jogging pace, whereas the 3 SC is bouncy and eager at race pace but tall and tippy when you slow down. Stability actually favors the older shoe here — the 2's lower, more moderate platform is the more planted and versatile of the two, while the 3 SC trades poise for a taller stack built to protect legs over marathon distance (39 mm heel / 33 mm forefoot). On fit and weight, both use thin, snug, narrow race uppers, but the 3 SC's wind-tunnel-shaped upper helps make it the lighter shoe at roughly 184 g in a men's US 9 versus about 219 g for the 2. The drops are close — 8 mm on the 2, 6 mm on the 3 SC. Where they truly separate is pace and distance: the 2 is happiest at hard 10K and tempo efforts around 3:40–4:00 min/km and tops out usefully at the half, while the 3 SC is a sharper-end tool optimized near 3:00–3:15 min/km with the marathon as its sweet spot.
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