The Topo Athletic Phantom 3 is a versatile daily trainer that provides reliable cushioning and long-lasting comfort. It features a dual-density ZipFoam midsole that combines a soft top layer for a plush feel with a firmer EVA bottom layer for stability and responsiveness. With its softer and lighter midsole foam, these shoes will perform just as well for fitness walkers as dedicated runners. The outsole is equipped with a 3 mm layer of rubber that delivers all the necessary grip and durability needed to handle all the miles you throw at it, and the engineered mesh upper provides excellent breathability and a secure "set it and forget it" fit. Overall, the Topo Athletic Phantom 3 is a great option for runners and walkers looking for a comfortable and dependable daily trainer.