Brooks Infiniti Double Tab Mesh Unisex White Blue Dri-Stitch nylon effectively wicks moisture while also keeping feet comfortable with a smooth soft feel A flat under toe seam all but eliminates the chance of blisters caused by friction between harsh seams and toes Mesh top reduces bulk and allows better air circulation, keeping feet cool and comfortable Arch compression helps prevent socks from sliding into the shoe during physical activity Achilles tab helps protect against blisters in this friction-prone area