Nike Zoom Rotational IV - The Nike Zoom Rotational IV throwing shoe is designed for the advanced shot put, discus, hammer and 35 lb. thrower looking for the most technically advanced throwing shoe. Synthetic leather with reinforced toe. Midfoot strap and forefoot straps provide lock down and support. EVA midsole. Internal plate. Full-length BRS 1000™ carbon rubber outsole. Innovative wrap design integrated with upper. Wt. 14.0 oz.