Brooks GTS 21 is one of the best new versions of a great running shoe. The changer are slight, but noticeable. But the size follows perfectly previous models, and the fit and feel is very similar.
The creators of the Adrenaline have tweaked the design to make it light, with the same level of support and comfort as previous models. The introduction of guide rails is a welcome feature of this new shoe.
Runners enjoy this shoe for its comfort, wear and performance.