Designed for a womans foot and built with KEEN. ReGENs proven midsole cushioning, offering 50% energy return with every step, a breathable mesh upper, carbon-fiber toes, and an ESD-rated outsole, this non-metallic work sneaker isnt only the comfort youve been looking for, its the performance you need. | Keen Women's Vista Energy ESD (Carbon-Fiber Toe) Shoes Size 5, In Magnet/Prune Purple.