Vibram FiveFingers Mens KomodoSport LS Running Shoes, Black/Blue mesh/polyamide Seamless 2mm Footbed Insole - Stitching free, to reduce friction and improve comfort Heel and Instep Hook and Loop Closures - Helps pull the upper tight round the contours of your feet so it feels like a second skin 4mm Vibram TC1 Performance Rubber Outsole - Offers excellent grip, traction and protection for all cross training activities