Try on the Nike Span. I bought a pair, but they ended up being a bit too narrow for me, but they are very close. I was told that they are going to go back to being a bit wider on the next generation.
budino - Mizuno Wave Inspire has the same level of correction as 2120/30s. Same with the Mizuno Wave Nexus, it just has less cushioning than the Inspire, but is a lot cheaper.
I don't know much about Nikes since we don't carry them in our store. Generally they are made for thinner feet and are made more for looks than performance.
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