adidas Adizero Boston 12 vs Adizero Boston 13

The adidas Adizero Boston 13 and adidas Adizero Boston 12 are close siblings, but the 13 refines the formula in ways that make it more approachable and enjoyable for a broader range of runners. Both share the same fundamental super trainer DNA (a dual-density midsole with Lightstrike Pro on top and a stabilizing Lightstrike carrier underneath, combined with the ENERGYRODS), but the Boston 13 brings notable updates that smooth out the ride. The combination of improved energy return and a more accommodating fit makes the Boston 13 feel less harsh and more fun to run in, especially when you're holding marathon pace. That said, the Boston 12 is a better option for those who have narrower feet or put ground feel at the top of their priority list.