To provide a sock with a performance that matches its purpose of use and seasonal requirements. To change the thickness and strength of different parts of the sock according to the load distribution on the sole and the impact that the different parts of the sock are subjected to when walking and running.Knitting structures of different thicknesses and airspace ratios, e.g., flat stitches P, short-terry stitches SP, long-terry stitches LP, mesh stitches M, short-terry stitches based on mesh stitches M-SP, long-terry stitches based on mesh stitches M-LP, short-terry stitches based on reinforced mesh stitches M-R-SP, long-terry stitches based on reinforced mesh stitches M-R-LP, short-terry stitches with reinforcement yarn R-SP and long-terry stitches with reinforcement yarn R-LP are distributed in different parts of the sock.