Why do my toes and arches cramp when i wear nike shox?

Evolution reversal: It depends on what you are using the shoes for and how often you are wearing them. Likely, you have used shoes with similar soles and shock absorption for your whole life. If you switch suddenly to a different shoe construct, the intrinsic muscles of your feet have no time to adapt to the new mechanics. Try slow transition into them. 30 mins/day to start. If still hurts, system may not fit withyou.

Lack of support: Nike shox shoes are simply not supportive enough for you, there is too much flex in the arch of the shoe. The toes and arch cramps because they are trying to maintain your arch. You can try an over the counter super feet insert in your shoes to add support or change to a motion control/stability shoe like the brooks gts, beast. Or get custom orthotics for your feet.