These are no good for sports or outside use with wind. I brought them as I assumed they would be great for riding my bike to isolate out the noise of the traffic and so forth. Unfortunately they do not hand wind noise at all, in fact they take the wind noise and amplify it through the speakers making it impossible to listen to the music. These are great however in the house but I have a pair of QC15 for that. Going to see about a refund.