ASICS Magic Speed 4 vs Asics Magic Speed 4

These are the same shoe: the ASICS Magic Speed 4, a plated, max-stack tempo and race trainer with a carbon plate, FF Turbo and FF Blast+ foam, and a 7 to 8 mm drop. Product A is the standard retail version in normal and wide widths; Product B is a pre-owned Relay listing of the same model in the Dawn Till Dusk colorway, medium width only. Buy A if you want a new pair, a wide fit, or a full size run; buy B only if you accept a pre-owned, zero-mileage return and your size and medium width are in stock. Owners call the ride fast, light and bouncy for tempo work and 5k to 15k races, but several say it runs small and the plate feels harsh past a half marathon.

• Choose the ASICS Magic Speed 4 if you want a new pair with wide width options and the full size range.
• Choose the Asics Magic Speed 4 CP Dawn Till Dusk Series if you are a medium-width runner in a listed size and are fine with a certified pre-owned, zero-mileage return.