Sprint to victory with the Brooks 2 QW-K. Built on a TubEffect Support Structure midsole, this short-distance track spike keeps your feet comfortable and supported. Pebax® Rnew outsole with 6-spike configuration provides lightning-quick acceleration and sustained speed. One piece, breathable upper helps feet stay cool and dry. Includes 1/4" pyramid spikes and a wrench. Wt. 5.8 oz.