I have been running for 15 years and this is the best bra I''ve used yet.  I''m training for a marathon and this is great for my long runs.  I am a 34B and feel like this gives amazing support.  The only thing I''m not crazy about are how thick the straps are I feel like it rubs occasionally.

I love this sports bra.  It is certainly made for high impact.  I have broad shoulders, so the other sports bras are hard to get on.  The clasp in the back makes this easy to get over my shoulders.  I wore it for a 15 mile run and no pain.  The shoulder straps are adjustable, so I was able to make it fit just right.