TOPO ATHLETIC Ultrafly 3 running shoes

Maintaining its 28/23mm stack height and 5mm drop, Ultrafly 3 now has uses our proprietary TPU based Zipfoam™ midsole, giving it more resilience and less compression set than traditional EVA. A firmer foam along the medial heel, combined with an external TPU heel counter molded into the upper, provides light guidance through the gait cycle. The engineered mesh upper features no overlays and a molded foam collar, providing soft seamless comfort. The antimicrobial Ortholite® footbed resists odor while delivering optimal comfort during long runs.