Anyone try these things out?
http://www.rbk.com/us/pump2.0/?BAC-...TT=runnersworld
If so, how does the cushioning system compare to other major cushioning systems like the ones in Asics Gel Nimbus VI and Mizuno Creation 6?
http://www.rbk.com/us/pump2.0/?BAC-...TT=runnersworld
If so, how does the cushioning system compare to other major cushioning systems like the ones in Asics Gel Nimbus VI and Mizuno Creation 6?

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