Grasp the difference. Feetures! provides athletes and others the ultimate in comfort and support, without the thickness and bulk of other premium brands. A totally different fit and a totally different feel. It won't slip inside your shoe. It has a link instead of barrier to your shoe and no irritating toe seam. It also protects without the bulk. The unique power bands of Lycra hug your entire foot for maximum support. CoolMax helps keep your feet dry. The lightweight mesh encircles the entire foot in two places for better ventilation and breath ability.