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The adidas adiZero HJ FL jumping shoe features a welded, stitchless composite upper with suede inner frame and SPRINTWEB overlay. Coolever mesh and lining has a clover-shaped yarn to manage head and sweat, reducing discomfort and increasing performance. Nylon spike plate adds stiffness. Scary sharp sharkskin outsole provides ultimate grip on the track in all conditions. Comes with 1/4" pyramid spikes and a wrench. Non-removable insole. Wt. 8.5 oz.