Brooks Adrenaline GTS 24 vs Brooks Adrenaline GTS 25:
Which to Choose

The two shoes share their entire mission — supportive daily training, GuideRails guidance for overpronation, DNA Loft cushioning, no propulsion plate, and a best-distance range of 10K, half, and full marathon at controlled paces — so the differences are evolutionary rather than dramatic. The clearest change is under the heel: the GTS 24 uses DNA Loft v2, while the GTS 25 moves to a softer, nitrogen-infused DNA Loft v3, giving the newer shoe a more forgiving, cushier impression underfoot even though neither is bouncy or springy. The drop also comes down from 12mm on the GTS 24 to 10mm on the GTS 25, a small shift that makes the 25 feel a touch more balanced front-to-back while still favoring heel strikers. On stability, the GTS 24 is the more locked-down of the pair — the 25's GuideRails are now co-moulded in one piece with the midsole for a smoother, more natural-feeling correction, so it guides rather than firmly braces; both remain genuine overpronation shoes with no intrusive medial post. Fit-wise the GTS 25 opens up slightly, with a roomier toe box that suits wider or higher-volume feet. The trade-off is weight and nimbleness: the GTS 25 comes in around 295g in a men's US 9 and feels sturdy rather than quick, and neither shoe likes being pushed much past a moderate tempo before the flat rebound holds you back.