adidas adiZero Javelin 2 - Men's The adidas adiZero Javelin 2 throwing shoe features a reinforced, mid-cut design that provides throwers with a secure and flexible platform to throw the javelin right through the tip. Allover synthetic upper provides maximum support. Pre-molded EVA midsole adds optimized comfort and cushion. Scary sharp sharkskin gives ultimate grip on the track in all conditions. Includes 3/8" pyramid spikes and a wrench. Wt. 11.3 oz.