Heel Lock provides a more secure, locked-in fit. Asymmetrical arch support hugs your arch just right. Zonal mapping to prevent blisters in high wear areas like the achilles and beneath the laces. Improved stretch and recovery thanks to the all-new material and circular knit pattern. Micro cushioning in the heel and toe for additional comfort and impact protection. New ‘Micro Crew’ silhouette takes our traditional ankle height and updates it to be slightly taller. Nike Dri-FIT technology moves sweat away from your skin for quicker evaporation, helping you stay dry and comfortable.