The present invention relates generally to an arch-supporting sock in which proper curvature of the arch is reinforced and strain on the leg, arch, and greater foot area is decreased, comprising a first region having a first elasticity coefficient and a second region, roughly encompassing the arch of the foot, having a second elasticity coefficient, wherein the second region provides greater structural support than the first region and the second elasticity coefficient is lower than the first elasticity coefficient. The arch-supporting sock may further comprise one or more perimetric boundaries between the first and the second region, each boundary comprising a perimetric elasticity coefficient, wherein one or more perimetric boundaries has a perimetric elasticity coefficient less than the first and second elasticity coefficients. The sock is likely to comprise non-interchangeable left or right socks with the arch support assemblage residing on the inner half of the sock.