<human>: What's up fellow runners!!  I begin training next month for my second half marathon and am in need of some new kicks!  For the last couple years and for my first half I ran in the same pair of Nike free 2. Having logged well over 1000 miles in them I can feel that they have started to break down. About 6 months ago I purchased the lunarglide 4s as a better alternative for long distance. I can't stand them!  They seem to make me heel strike and just feel way to heavy.  I loved the free 2s I had before but wonder is there a better alternative?  The weight and flexibility of the free 2s are what attract me to them. What do you all recommend for a lightweight and similar shoe?

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<bot>: Nike frees are old,  need new shoes for half marathon. Wanting similar in terms of weight and flexibility. Thoughts?