The new adrenaline asr 12 blends a comfortable fit with smart terrain technologies for an awesome running experience on any kind of terrain this is a standard adrenaline gts but with a closed mesh in the upper dwr water resistant coating and a more aggressive outsole for better traction in wet conditions comfort and stability is provided in the midsole by anatomical brooks dna full length biomogo progressive diagonal rollbar pdrb drb accel full length s 257 cushsole heel and midf