by far the best action/performance pair of sunglasses i have used. oakley is the only choice for me. i have gone through one pair and am working on my second. the first pair was literally put through a trial by fire. i was camping and in the midst of stirring the fire my m frames fell in and i didnt realize what had happened until about ten minutes later. when i fished out my frames the only thing that needed to be replaced were the earsox. i bought a new pair anyway. worth every penny.