FEETURES Original High Performance Light Cushion No Show Tab (Brilliant Blue 17.5 OT) Polyester High-density cushioning provides extra protection in key impact areas. iWick fibers wick moisture to keep feet cool, dry and odor-free. SnugFit Technology - Unique Power Bands of Lycra&reg; hug your entire foot for maximum support. This snug, supportive fit eliminates movement to prevent blisters. The PerfectToe (No irritating toe seam.) Mesh construction on top of the sock provides ventilation for added breathe-ability.