Nike Air Zoom Structure 21 Running Shoes in Thunder Blue/Metallic Silver
Nike Air Zoom Structure 21 Running Shoes in Thunder Blue/Metallic Silver
Lighter than ever, Nike Air Zoom Structure 21 Running Shoe gives you all the support you need. Updated with an engineered mesh upper that's stronger and lighter than before, this running shoe continues to cushion your stride with a dual-density midsole and midfoot system that provides locked-down support.
