TheSlipstream shoe cover was developed for two purposes: to shield your feet fromchilling cold and to create an aerodynamic advantage. Wear Slipstream shoecover directly over your cycling shoes to feel greater comfort on cool days andto slice through the wind.  ShoeCover w/ 4" Top Cuff

CareInstructions :

Machine wash cold, tumble-dry low, no chlorine bleach.

Contents :

60% Cordura, 30%Nylon, 10% Lycra