Sawtooth Murph Max Performance Black Running Socks Elasticized Arch and Deep Heel Pockets - no slipping or bunching, blisters or hotspots Seamless Toe - no rubbing Blend of performance materials keeps your feet dry No Show Heel tab - Helps prevent the sock from slipping into your running shoe iDri Technology - Keep your feet drier and so you can run longer High Stitch Count- Less Bulk and more comfort and durability to create the best running sock